Question

simplify using suitable identity : (1.5x + 3) (1.5x - 3)

Answer 1

Hey mate here is your answer:
Ques: (1.5x+3)(1.5x-3)

*In this case we have to use;
Identity 4: x^2+(a+b)X+ab
=1.5x^2+0*1.5x+3*-3
=2.25x^2-9 answer

Answer 2

I hope it will help you :-)