Question

factorize
4x^2- (x-y)^2
75x^3y^2 - 48xz^2
a^2-12ab + 36ab^2 - 49
9+ 54x + 81 x^2

Answer 1

Step-by-step explanation:

81x^2+54x+9=0

9(9x^2+6x+1)=0

9x^2+6x+1=0

9x^2+3x+3x+1

3x(3x+1)+1(3x+1)

(3x+1)(3x+1)

(3x+1)^2

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