Question

(a+b)=a²+b²+2ab derivation formulas

Answer 1

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

Answer 2

Solution ●●●●
_____________

To prove that
___________

$(a + b) {}^{2} = {a}^{2} + {b}^{2} + 2ab$


PROOF :-
________

$= (a + b)(a + b) \\ \\ = a(a + b) + b(a + b) \\ \\ = {a}^{2} + ab + ab + {b}^{2} \\ \\ = {a}^{2} + 2ab + {b}^{2} \\ \\ = {a}^{2} + {b}^{2} + 2ab$

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