Question

find the cube of (a+2b)​

Answer 1

Answer:

(a+2b)^2 = ( a^2 + b^2 + 2 × a × 2b )

= a^2 + b^2 + 4ab ( bcz ( a+ b )^2 = a^2 + b^2 + 2 (a) (b)

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