Assuming x = 4, replace each x in the equation with 4:
[tex]4(4)^{2} - 3(4) + 3[/tex]
Solve each term in parentheses:
[tex]4(4)^{2}[/tex]
[tex]4^{2} = 16[/tex]
[tex]4 \times 16 = 64[/tex]
[tex]-3(4)[/tex]
[tex]-3 \times 4 = -12[/tex]
Your equation should now look like this:
[tex]64 - 12 + 3 = 55[/tex]
f(4) will equal 55.
