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03-03-2021
Mathematics

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Which of the following is the equivalent to the expression below?

Which of the following is the equivalent to the expression below class=

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really226 really226

03-03-2021

Answer:

D: -5x^2+4x-4

Step-by-step explanation:

[tex]x^2+x-4-3x(2x-1)\\=x^2+x-4-6x^2+3x\\=-5x^2+4x-4[/tex]

For simplicity you only check the terms with different coefficient: coefficient of x:

+1+(-3)(-1)=+4

Ans: D

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