Question

(3x + 1/2 ) (3x+1/2) square use suitable identity

Answer 1

Answer:

By using 1st identity = (a+b)^2= (a+b) (a+b)

= a^2+2ab+(b)^2

Step-by-step explanation:

(3x+1/2) (3x+1/2)= (3x)^2+2*3x*1/2+(1/2)^2

=9x^2+3x+1/4 Ans.

HOPE IT WILL HELP YOU!!

Answer 2

Step-by-step explanation:

given,

(3x+1/2)(3x+1/2)

= (3x+1/2)²

it is in the form of (a+b)²

a= 3x

b= 1/2

expansion of (a+b)²= a²+b²+2(a)(b)

= (3x)²+(1/2)²+2(3x)(1/2)

9x²+1/4+3x

so the expansion is 9x²+3x+1/4