Question

pls give me the correct answer pls it's urgent ​

Answer 1

Question:-

$(3a + 4b )^{2}$

Formula required:-

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

Solution:-

Let,

A = 3a

B= 4b

$= 3a^{2} + 2(3a)(4b) + (4b)^{2}$

$= 9a^{2} + 24ab + 16b^{2}$