Question

factorise 25x²/4-y^2/9​

Answer 1

Step-by-step explanation:

25x^2÷4+(-y^2÷9)

9(25x^2)÷36 + 4(-1) y^2÷36

9×25x^2÷36 + 4 (-1) y^2) ÷36

225x^2+4(-1)y^2 ÷36

225x^2 -4y^2÷36