Question

Evaluate.
(a – 2013
when a =
— 3 ana b = -1
3 6
2
Enter your answer in the box.
-27

Answer 1

Solution:

$\\ (a - 2b) ^{3}$

$\\ ( - 3 - 2 \times \frac{ - 1}{2} ) ^{3}$

$\\ = (- 3 + 1) ^{3}$

$\\ = ( - 2) ^{3}$

$\\ = ( - 2)( - 2)( - 2)$

$\\ = - 8$

Answer:

$\\ {\boxed{ - 8}}$

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Answer 2

(a-2b)³

a= -3 b= -1/2

= (-3-2 [ -1/2 ] )³

= (-3-1 [ -1 ] )³

= (-3+1)³

= (-2)³

= (-2)×(-2)×(-2)

= -8

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