Mathematics High School

What are the zeros of f(x) = x2 + x – 30?
A. x = –6 and x = 5
B. x = –5 and x = 6
C. x = –15 and x = 2
D. x = –2 and x = 15

Answers

Answer 1
When you factor our f(x)=x^2+x-30, you get (x+6)(x-5). In order to get your zeroes you need to plug in values that would make each of those two parentheses equal to zero. So in this case since -6+6=0 and 5-5=0, your zeros would be x=-6 and x=5.
Answer 2

Answer:

Answer A is correct.  (x + 6)(x - 5) = x^2 + x - 30.

Step-by-step explanation:

Note that -30 = (-5)(6) and (5)(-6). This quadratic can be factored easily:

x^2 + x - 30 = (x + 6)(x - 5) is correct because 6x - 5x = x, the middle term of x^2 + x - 30.

Setting each factor equal to zero, one by one, we get:

x + 6 = 0 => x = -6, and x - 5 = 0 => x = 5

Answer A is correct.

Related Questions

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y=$5+$1.25x

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Step-by-step explanation:

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Step-by-step explanation:

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Answer: 1.38

Step-by-step explanation:

552

x 25

02760

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then you put your decimal over 4 spots and you take the 2 zeros off the end and get your answer of

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Answers

Step-by-step explanation:

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HOPE THIS HELPS

Question 1
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Answers

8 units

i’m sorry if it’s wrong but i’m pretty sure it should be right.
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HI THIS IS MY SECOND QUESTION PART 2 TO MY FIRST COULD I PLEASE GET HELP?????>3

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Answer:

6. A

7. C

8. C

9. B

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osjshwjwowi

What is the equation of the line –3x–2y=30 in slope-intercept form?

change the equation to : y = mx + b
Enter your answer in the box.

Answers

Answer:

y=-3/2x-15

Step-by-step explanation:

What is the slope-intercept form of this equation?
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Answers:
Y= 2/3x + 2
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Answers

Answer:

y = -8x + 12

Step-by-step explanation:

Slope intercept form: y = mx + b

m ---> Slope   & b ----> y-intercept

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PLZ HELP RN ILL MARK YOU BRAINLIST IF ITS RIGHT PLZZZ IM DESPERATE

Answers

Answer:

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Step-by-step explanation:

What I would do is use inverse operation. First do -8 x -3 = 24. Then check your work by doing 24 divided by -3 = -8. So x = 24. I am 100% sure this is correct

Pls mark me brainliest

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8 yeah yeah yeah your welcome

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Answers

Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

suppose you have a bag of 25 marbles and 3 of the marbles are white.If you choose one without looking, what is the probability you choose a white marble? Write this probability as a percent . Use a word or phrase to describe this probability.​

Answers

Answer:

3/25

THERE IS AN 11% CHANCE

can i get brainliest

Step-by-step explanation:

Answer:

12%

Step-by-step explanation:

3 is 12% of 25. So you would have a 12 percent chance of getting a white marble.

3 ÷ 25 = 0.12 = 12%

Percent formula

P × V1 = V2

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

Compare the equation with the standard form, y=ax2+bx+c . Since the value of a is positive, the parabola opens up.

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Step-by-step explanation:

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Hope this helps and have a nice day ~(^_^)~

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Answers

Answer:

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Step-by-step explanation:

to solve for the common ratio, I like to take the second term and divide it by the first term

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then I will check the rest of the terms

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Answers

Answer:

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Answers

Answer:

Step-by-step explanation:

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plz help fast (worth 15 pts) A prism and two nets are shown below:

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Answers

Answer:

This is worth more than 15

Step-by-step explanation:

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

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Answers

B
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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

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Answers

if the answer your looking for is a graph then yeah

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Answers

SANA ALL SMART HAHAHAHHAAHHAHAAHA

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