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OpenStudy (anonymous):
f(x)=3x2+5x find f(-2)
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OpenStudy (promisespromises):
Just plug -2 in for all x in the equation.
OpenStudy (anonymous):
Its mean x=-2. change x by -2. 3(-2)2+5(-2)
OpenStudy (unklerhaukus):
\[f(x)=3(x)^2+5(x) \] \[f(-2)=3(-2)^2+5(-2)\\\quad\qquad= \]
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