1.

4x2+1÷4x2+2-9y2. Factorise it

Answer»

4x^2 + 1/4x^2 - 9y^2 +2 =
(2X)^2 +(1/2x)^2 +2 -(3Y)^2
=(2x+ 1/2x)^2 -(3y)^2
=(2x+3y+1/2x)(2x-3y+1/2x)


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