Question

Simplify and evaluate as directed-
a (a^3 + a^2 +a-2) +5 for a = -1

Answer 1

Answer:

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Answer : -15

Hope it helps you

Answer 2

Answer:

$a (a^3 + a^2 +a-2) +5 =8$

Step-by-step explanation:

$a (a^3 + a^2 +a-2) +5$

$= a^4 + a^3 + a^2 - 2a + 5$

Put $a = -1$

$a^4 + a^3 + a^2 - 2a + 5 = (-1)^4 + (-1^3) + (-1^2) - 2(-1) + 5$

$= 1 + (-1) + 1 + 2 + 5$

$=3 + 5$

$= 8$