What are the factors of x2 plus x-20?

Answer 1

If that's x2, the answer is (x - 5)(x - 4)

Answer 2

x2 - 8x - 48 = x2 - 12x + 4x - 48 = x(x-12)+4(x-12) = (x-12)(x+4)

So, factors are (x-12) & (x+4).

Answer 3

Operational signs would make this so much easier. If that's x2 - x - 20, the answer is (x + 4)(x - 5). If that's x2 + x - 20, the answer is (x + 5)(x - 4).

Answer 4

x2 + 8x - 20 = (x - 2)(x + 10).

Answer 5

(x+5) and (x-4)

Answer 6

(x - 10)(x + 2)