Evaluate. (a−2b)3 when a=−4 and b=−1/2 this question is from k12

asked Dec 22, 2024 64.9k views

2 votes

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5 votes

Answer:

- 27

Explanation:

given

(a - 2b)³ ← substitute a = - 4 and b = -
(1)/(2) into the expression

= (- 4 - 2( -
(1)/(2) ) )³

= ( - 4 + 1)³

= (- 3)³

= - 27

Exceptions answered Dec 27, 2024

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