KerstinR636215 KerstinR636215

03-11-2022
Mathematics

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Subtract.7x2 - 5x+3(2x2 +7x-4)A. 5x2 - 2x + 7B. 5x2 - 12x +7C. 5x2 + 12x-1D. 5x2 + 2x-1

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CerenitiO686743 CerenitiO686743

03-11-2022

We have to evaluate the expression 7x^2 - 5x + 3 - (2x^2 +7x-4):

[tex]\begin{gathered} 7x^2-5x+3-(2x^2+7x-4) \\ (7-2)x^2+(-5-7)x+(3-(-4)) \\ 5x^2-12x+(3+4) \\ 5x^2-12x+7 \end{gathered}[/tex]

Answer: B. 5x2 - 12x +7

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