(x - 10)(x - 10)
x2 + 4x - 60 factors into (x + 10)(x - 6). You can use the FOIL method to check your answers when you factor.
(x + 10)(x - 3)
(x - 10)(x - 9)
x2+14x+40 = (x+4)(x+10) when factored
x2 + 10 - 24 = (x + 12)(x - 2)
(x + 10)(x - 10)
-x2(x + 10)(x - 10)
(x - 10)(x + 1)
x2-3x-10 = (x+2)(x-5) when factored
(x - 10)(x - 10)
1
If you factor x2 - 3x - 10, you'll get (x-5) (x+2). If your equation is x2 - 3x -10 = 0, then x = 5, and x = -2.
21
x2+14x+40 = (x+4)(x+10) when factored
There is a formula for the "difference of squares." In this case, the answer is (x + 10)(x - 10)
It doesn't factor evenly if it were x**2-11x+10: x**2-11x+10 = (x-1)(x-10)