Help Please 20 POINTS Which expressions are equivalent to the following?

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asked Jul 13, 2020 147k views

5 votes

Help Please 20 POINTS
Which expressions are equivalent to the following?

Mathematics
middle-school

Jason Ridge asked

by Jason Ridge

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1 Answer

4 votes

Answer:

$\large\boxed{5x(6x-x-2)}\\\\\boxed{-5(-6x^2+x+2)}\\\\\boxed{5(2x+1)(3x-2)}$

Explanation:

$30x^2-5x-10=5(6x^2-x-2)=5(-1)(-6x^2+x+2)=-5(-6x^2+x+2)\\\\30x^2-5x-10=30x^2+15x-20x-10=15x(2x+1)-10(2x+1)\\\\=(2x+1)(15x-10)=(2x+1)(5)(3x-2)=5(2x-1)(3x-2)$

Akarapatis answered Jul 17, 2020

by Akarapatis

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