Question

expand (4x-3b)^3
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Answer 1

Step-by-step explanation:

( 4x - 3b)³

as identity suggests,

a ³ + b³/(a+b)³= a³+3ab+b³

so ,answer- (4x)³+3×4x×3b+(3b)³

= 64x + 36xb + 27b³ .

hope it helps you out.