3 years ago

Evaluate the expression for the given value of the variuble with step by step explanation

Mathematics

1 answer:

GaryK [48]3 years ago

7 0

Substitute the value of b = -2 to the expression

$-4b-8+(-1)-b^2+2b^3=2b^3-b^2-4b-8-1=2b^3-b^2-4b-9\\\\2(-2)^3-(-2)^2-4(-2)-9=2(-8)-4+8-9=-16-4+8-9=-21$

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