Question

Expand(4/3a+1/7b)^2​

Answer 1

Answer:

As we know that,

(a+b)²= a²+b²+2ab

Here

a= 4/3a ( FILL THESE VALUE IN ABOVE EXPRESSION)

b= 1/7b

SO WE GET,

= (4/3a)²+(1/7b)²+2×4/3a×1/7b

= 14/9a²+1/49b²+8/21ab

This is your answer

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