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viva [34]
4 years ago
13

PLEASE HELP ASAP 60 POINTS + BRAINLIEST TO RIGHT/BEST ANSWER!

Mathematics
2 answers:
Lina20 [59]4 years ago
8 0

Answer:

see explanation

Step-by-step explanation:

Given

P(x) = x³ + 7x² + 4x, then

P(a) = a³ + 7a² + 4a ← substitute x = a into polynomial

To evaluate P(- 2) substitute a = - 2 into P(a)

P(- 2) = (- 2)³ + 7(- 2)² + 4(- 2) = - 8 + 28 - 8 = 12

Since P(- 2) ≠ 0 then (x + 2) is not a factor of P(x)

Paul [167]4 years ago
5 0

Answer:

12

Step-by-step explanation:

(-2)³ + 7(-2)² + 4(-2)

12

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