(x-7)(x-3)
It is (x+6)(x+7) when factored
(7x+2)(2y-1)
2x + 7 + 5 = 2x + 12 = 2*x + 2*6 = 2*(x+6)
(x - 3)(2x - 7)
(p + 12)(p - 7) p = 7, -12
2x(y - 3) + 7(y - 3) = (2x + 7)(y - 3)
The quadratic cannot be factorised. Its roots are irrational.
-47
x(x - 7)
6x + 9x^3 = 3x*(2 + 3x^2)
in the p2 lab