Simplify: 6x2−63x+3\dfrac{6x^2 - 6}{3x + 3}3x+36x2−6 (assume x≠−1x \neq -1x=−1).
2(x−1)2(x - 1)2(x−1)
2(x+1)2(x + 1)2(x+1)
2x−12x - 12x−1
6(x−1)6(x-1)6(x−1)