Question 358465
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Hi,
{{{f(x)=2x^2+2x-7}}}
f(2)  substituting 2 for x in the equation
{{{f(2)=2*2^2+2*2-7 = 8 + 4 -7 = 5}}}

f(4)  substituting 4 for x in the equation

{{{f(2)=2*4^2+2*4-7 = 32 + 8 -7 = 33}}}