Question

Evaluate the following using suitable identities : ( 2x + 3 ) ( 2x + 3 )​

Answer 1

Answer:

This is in the form of (a+b)(a−b)=a2−b2

⇒(3−2x)(3+2x)=32−(2x)2

⇒(3−2x)(3+2x)=9−4x2

Answer 2

Answer:

(3−2x)(3+2x)

This is in the form of (a+b)(a−b)

=

a2

−b2

⇒(3−2x)(3+2x)=32

−(2x)2

⇒(3−2x)(3+2x)=9−4x2