14-03-2021
Mathematics

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If C = 2x^2+5x-1 and D = x-1 find an expression that equals C-3D in standard form.

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14-03-2021

Answer:

2x^2+2x+2 or 2(x^2+x+1)

Step-by-step explanation:

C = 2x^2+5x-1

D = x-1

C-3D = (2x^2+5x-1) - 3 * (x-1) =2x^2+5x-1-3x+3 =2x^2+2x+2 = 2(x^2+x+1)

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