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laila [671]
3 years ago
12

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

Mathematics
2 answers:
astraxan [27]3 years ago
4 0

Answer:

255

Step-by-step explanation:

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

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

= 108 + 117 + 30

= 255

ycow [4]3 years ago
3 0

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

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