Question

Find (a) (3x + 2) power 2​

Answer 1

$= {(3x + 2)}^{2} \\ = {(3x)}^{2} +( 2 \times 3x \times 2)+ {(2)}^{2} \\ = 9 {x}^{2}+ 12x + 4$

$Formula \: \: applied : \\ {(a + b)}^{2} = {a}^{2} + 2ab + {b}^{2}$

...hope it's helpful :)

Answer 2

Answer:

=(3x)

2

+(2×3x×2)+(2)

2

=9x

2

+12x+4

\begin{gathered}Formula \: \: applied : \\ {(a + b)}^{2} = {a}^{2} + 2ab + {b}^{2} \end{gathered}

Formulaapplied:

(a+b)

2

=a

2

+2ab+b

2