How do you solve $-x^2-4x$ if $x=-3$ ?

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Answer 1 · 2018-06-09T20:56:09

$3$

Well in an expression, when you are given the value of something you first start by replacing all the terms with the value eg.

$-(-3^2)-(4xx-3)$

And from there you just have to cancel it out.

$-9-(-12)$

$-9+12$

$3$

How do you solve -x^2-4x-x^2-4x if x=-3x=-3?