Which expression below is equal to 6(2x+4) - x² +15-x? A. x² +11x +9 C. 14x +39 B. x² +11x +39 D. 10x² +9

asked Dec 2, 2023 100k views

1 vote

Which expression below is equal to 6(2x+4) - x² +15-x?

A. x² +11x +9
C. 14x +39
B. x² +11x +39
D. 10x² +9

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3 votes

Answer:

Explanation:

$6(2x+4) - x^2+15-x\\=12x + 24-x^2+15-x\\=-x^2+24+15+12x-x\\=-x^2+11x+39$

The closest answer you have provided is B.

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