Question

4x² - 9 = (2x + 3) x _____​

Answer 1

Answer:

(2x+3)×(2x-3l

4x²-9

So the answer is (2x-3)

Answer 2

Answer:  (2x-3)

Step-by-step explanation:

L.H.S = 4x²-9

         =(2x)² - (3)²               hint:  {a²-b²}

          = (2x+3)(2x-3)

Therefore (2x+3)(2x-3) should be multiplied with each other to get left hand side (L.H.S).