Question

Simplify 2a (a2 + a - 2) + 8 and find its value for a = 2
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Answer 1

Answer:

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Step-by-step explanation:

→ 2a(a² + a - 2) + 8

→ [2a(a²) + 2a(a) - 2a(2) ] + 8

→ [ 2a³ + 2a² - 4a ] + 8

→ value for a = 2

→ [2(2)³ + 2(2)² - 4(2) ] + 8

→ [ 2(8) + 2(4) - 8] + 8

→ [ 16 + 8 - 8 ] + 8

→ [ 16 ] + 8

→ 24