1. x^2(1+3x^2)
3(a^2 - 9)= 3(a-3)(a+3)
x^2+4x+4 = 0
(x+2)(x+2)
2. x(x-3) = 0
x=0 x=3
3. = 3c^6 \ a^2
1. x^2(1+3x^2)
3(a^2 - 9)= 3(a-3)(a+3)
x^2+4x+4 = 0
(x+2)(x+2)
2. x(x-3) = 0
x=0 x=3
3. = 3c^6 \ a^2