Question

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$(a + b) {?}^{2}$
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Answer 1

Answer:

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

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Answer 2

Answer:

(a + b)²

= (a + b) (a + b)

= a² + ab + ba + b²

= a² + ab + ab + b²

= a² + 2ab + b²