AdalisT772887 AdalisT772887

29-10-2022
Mathematics

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If A(x) = –2x2 – 4, B(x) = 5x – 3 and C(x) = -4x^2 + 7x, form a simplified expression for A(x) - B(x) - C(x).

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GraziellaG178315 GraziellaG178315

29-10-2022

A(x) - B(x) - C(x) = -2x^2 - 4 - (5x - 3) - (-4x^2 + 7x)

Expand

= -2x^2 - 4 - 5x + 3 + 4x^2 - 7x

Simplify like terms

= -2x^2 + 4x^2 - 5x - 7x - 4 + 3

Result

= 2x^2 - 12x - 1

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