Question 674932
f(x) = {{{3x^2 + 8x - 7}}}
f(2) = {{{3(2^2) + 8(2) - 7}}}
= 3(4) + 16 - 7
= 12 + 16 - 7
f(2)= {{{highlight_green(21)}}}

.....................
Delighted to help.
-Reading Boosters
Website: www.MyHomeworkAnswers.com
Wanting for others what we want for ourselves.