Question

a= (a+b)²-2b² , show a=b ​

Answer 1

Answer:

(a+b)^2 = 2a^2+2b^2

a^2+b^2+2ab = 2a^2+2b^2

2ab = 2a^2+2b^2-a^2-b^2

2ab = a^2-b^2

2ab = (a-b)+2ab

2ab-2ab= a-b

0 = a-b

a=b

Explanation:

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