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2 votes
Evaluate 12x2 + 39x + 30 at x = 3.

2 Answers

6 votes

Answer:

255

Explanation:

f(x) =
12x^(2)\\ + 39x + 30

f(3) = 12(3)
^(2) + 39(3) + 30

= 108 + 117 + 30

= 255

User Ambat Bhath
by
4.7k points
3 votes

Answer:

255

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

User Yrodiere
by
4.7k points