Question

8. Solve using identities:

(A) (a + 2)2

Answer 1

Answer:

$(a \: + {2}) = ^{2} \\ \\ a + 4$

Answer 2

$\huge\mathcal{\fcolorbox{aqua}{red}{\fcolorbox{aqua}{orange}{ANSWER....!!!}}}$

USING THE IDENTITY:-

${(x + y)}^{2} = {x}^{2} + {y}^{2} + 2xy$

here X = a , y = 2

${(a + 2)}^{2} = {a}^{2} + {2}^{2} + 2(2a) \\ \\ = {a}^{2} + 4 + 4a$