Question

PLEASE HELP ASAP 50 PTS + BRAINLIEST TO RIGHT/BEST ANSWER

Answer 1

Answer:

51

Step-by-step explanation:

Given

P(x) = 2x³ + 4x² - 10x - 9, then

P(a) = 2a³ + 4a² - 10a - 9 ← substitute x = a into P(x)

To evaluate P(3) substitute a = 3 into P(a)

P(3) = 2(3)³ + 4(3)² - 10(3) - 9 = 54 + 36 - 30 - 9 = 51

Since P(3) ≠ 0 then (x + 3) is not a factor of P(x)

Answer 2

Answer:

51

Step-by-step explanation:

2(3)³ + 4(3)² - 10(3) - 9

= 51