3 years ago

How to use the proper formula

2 answers:

4 0

Just plugin -3 where the x is in $2x^2 - x$
$f(-3) = 2x^2 - x$
$f(-3) = 2(-3)^2 - (-3)$
$f(-3) = 2(9) - (-3)$
$f(-3)= 18 - (-3)$
$f(-3) = 21$
$21$ <------The answer

Elis [28]3 years ago

3 0

21 is the answer
thanks (:

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