Question

Expand using formula (
2a²+b²)

Answer 1

Answer:

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

$\\ \\ (2a + b) ^{2} = 4a ^{2} + b ^{2} + 4abb \\ \\ answer.$

Step-by-step explanation:

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