Question

Factorise 4x^2 - 9 y^2​

Answer 1

Step-by-step explanation:

4x^2-9x^2

(2x)^2-(3y)^2

so

(2x+3y)(2x-3y)

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Answer 2

by using formula a^2 - b^2 = (a+b)(a-b)

(2x + 3y)(2x - 3y)