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Tasya [4]
3 years ago
6

(16x-1) (20x+10) What is X?

Mathematics
1 answer:
KatRina [158]3 years ago
8 0

Answer:

320x^2+140x-10

Step-by-step explanation:

(16x-1)(20x+10)

320x^2+160x-20x-10

320x^2+140x-10

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Answer:

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consider the function f(x) = x2 2x – 15. what are the x-intercepts of the function? left-most x-intercept: ( , 0) right-most x-i
eimsori [14]

we have

f(x)=x^{2} +2x-15

we know that

The x-intercept is the value of x when the value of the function is equal to zero

so

in this problem

Find the roots of the function

equate the function to zero

x^{2} +2x-15=0

Group terms that contain the same variable, and move the constant to the opposite side of the equation

x^{2} +2x=15

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Rewrite as perfect squares

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Square root both sides

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(x+1)=(+/-)4

x=-1(+/-)4

x1=-1+4=3

x2=-1-4=-5

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therefore

<u>the answer is</u>

the x-intercepts are the points (3,0) and (-5,0)

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3 years ago
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