Question

Question in the above Attachment please answer with explanation​

Answer 1

Answer:

3x^3 + 9x^2 - x + 8

if x = 4

3 x 4^3 + 9 x 4^2 - 4 + 8

= 3 x 64 + 9 x 16 + 4

= 192 + 144 +  4

= 340

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Answer 2

Step-by-step explanation:

p(x) = 3x³+9x²-x+8

p(4) = 3×4³ + 9× 4² - 4 +8

= 192 + 144 - 4 + 8

= 340