x2+10x+21 = (x+3)(x+7)
x2 + 10x + 21 = (x + 3)(x + 7)
x2+10x-336
(x2+10x+21)/(x+3) = (x+7)
(x - 7)(x - 3)
If that's + 10x + 21, the answer is (x + 7)(x + 3)
(x - 3)(x - 7)
If that was - 10x + 21, it would factor to (x - 3)(x - 7) If that was + 10x + 21, it would factor to (x + 3)(x + 7) As it is, the solutions are irrational.
That expression can not be factored.
x2+10x-24 = (x-2)(x+12)
Factor the polynomial x2 - 10x + 25. Enter each factor as a polynomial in descending order.
Factorising, we obtain, x2 + 10x + 21 = (x + 7)(x + 3). Thus, x2 + 10x + 21 / (x + 3) = x + 7. That's usually easier than dividing it out!