Question

Find the square of the following (3b+2c)

Answer 1

Here is your answer user.

Answer 2

Step-by-step explanation:

$({3b + 2c})^{2}$

$\: \: \: = {3}^{2} \times {b}^{2} + 2 \times 3 \times b \times 2 \times c + {2}^{2} \times {c}^{2}$

$= 9 {b}^{2} + 12bc + 4 {c}^{2}$

Identity:

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