Question

Expand the following (b+2)^2

Answer 1

Answer:

b^2+4b+4

Step-by-step explanation:

(b+2)^2. [ by (a+b)^2= a^2+2ab+b^2]

b^2+4b+4

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Answer 2

$\huge\tt\colorbox{black}{\color{olive}{Answer}}$

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

$apply \: the \: formula$

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

$where \: x = b \: \: y = 2$

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

${ = }\bold\color{olive}{ {b}^{2} + 4 + 4b}$