Question

simplify ........... 2nd sib sivision

Answer 1

use
identity ,(a+b)^2 ,(a-b)^2

4x^2 + 9+ 12x -4x^2 -9 + 12x
=24x

hope it helped !

Answer 2

Solution 1.)

( x^2 - y^2)^2

= ( x^4 + y^4 - 2 x^2 y^2)

Using identity :-

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

Solution 2.)

( 2x + 3)^2 - (2x - 3)^2

= ( 2x + 3 - 2x + 3) (2x + 3 + 2x - 3)

Using identity :-

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

= 6 ( 4x)

= 24x