ZavalaVanguard ZavalaVanguard

18-10-2021
Mathematics

contestada

(a−2b)3 when a=−2 and b=−1/2

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VirαtKσhli VirαtKσhli

18-10-2021

Given :-

( a - 2b)³

To find :-

Value at a = -2 and b = -1/2

Solution :-

Substitute the values ,

( a - b)³
( -2 - (½ ))³
( -2 + ½ )³
( -4+1/2 )³
(-3/2)³
-27/8

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sanyamjain99 sanyamjain99

18-10-2021

Answer:

(a-2b)3=3a-6b

=3x-2-6x-1/2

= -6+3

= -3

Step-by-step explanation:

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