4x2-3(x-2)2=(x+3)(x-3)-3

Question

4x2-3(x-2)2=(x+3)(x-3)-3

Answer 1

4x²-3(x-2)²=(x+3)(x-3)-3
4x²-3(x²-4x+4)=x²-9-3
4x²-3x²+12x-12=x²-12
4x²-3x²-x²+12x=-12+12
12x=0
x=0