Question

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

Answer 1

(a+b)^2

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

HOPE IT HELPS YOU....

Answer 2

(a+b)^2=a^2+b^2+2ab
${(a + b) }^{2} = {a}^{2} + { {b}^{2} } + 2ab$
here is the correct answer
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