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1. 9x2-16y

Answer»

9x^2-16y^2= (3x)^2-(4y)^2

Formulaa^2-b^2= (a+b)(a-b)Herea= 3xb= 4ySo(3x+4y)(3x-4y)Please like the solution 👍 ✔️👍

why 9x^2 becomes 3x^2



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