Question

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

(2a+b)^2
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Answer 1

Answer:

4a^2+b^2+4ab...........

Answer 2

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

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

${4a}^{2} + {b}^{2} + 4ab$

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