Answer:
255
Step-by-step explanation:
12x^(2) + 39x + 30
x = 3
Substitute in"3" for "x" and solve;
12(3)^(2) + 39(3) + 30
= 12 * 9 + 117 + 30
= 108 + 117 + 30
= 255
Answer:
255
Step-by-step explanation:
f(x) = [tex]12x^{2}\\[/tex] + 39x + 30
f(3) = 12(3)[tex]^{2}[/tex] + 39(3) + 30
= 108 + 117 + 30
= 255
