Question

4x^2 - 12x + 9 -4y^2
solve in terms of a^2-b^2

Answer 1

Step-by-step explanation:

hey mate

a^2-b^2= (a+b)(a-b)

here

4x^2-12x+9-4y^2

=> 4x^2-4y^2+9

=> (2x) ^2-(2y) ^2+9

=> (2x+2y)(2x-2y) +9. (using the identity)

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