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Question Number 20927 by amaresh pradhan last updated on 08/Sep/17

(a+b)×(a+b)

$$\left({a}+{b}\right)×\left({a}+{b}\right) \\ $$

Answered by Joel577 last updated on 08/Sep/17

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

$$=\:\left({a}\:+\:{b}\right)^{\mathrm{2}} \:=\:{a}^{\mathrm{2}} \:+\:\mathrm{2}{ab}\:+\:{b}^{\mathrm{2}} \\ $$

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