Simplify the following polynomial, then evaluate for x = -2 2x2 - 4x + 3x2 + x - 7

asked May 3, 2024 194k views

1 vote

Simplify the following polynomial, then evaluate for x = -2

2x2 - 4x + 3x2 + x - 7

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2 votes

Answer:

$5x^2-3x-7,\,\,f(-2)=19$

Explanation:

$f(x)=2x^2-4x+3x^2+x-7\\f(x)=5x^2-3x-7\\f(-2)=5(-2)^2-3(-2)-7\\f(-2)=5(4)+6-7\\f(-2)=20-1\\f(-2)=19$

Jeppz answered May 10, 2024

by Jeppz

7.2k points

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