Question

factor the trinomial completely... x^2+2x-24

Answer 1

you need to find 2 numbers a and b where ab = -24 and a - b = +2
the factors will be
(x +a)(x + b)

Answer 2

Either you can go the long route of using the quadratic formula or you can look at the 2x and the -24 and try and think about what two numbers would equal -24 if you multiplied them, but would also equal 2 if you added them

Answer 3

* a + b = 2

Answer 4

Clue: 6 * 4 = 24 but we need -24

Answer 5

so either the 2 or the 6 is negative
we need the addition to be + 2 so which one will be negative?

Answer 6

I think you mean either the 4 or 6 is negative

Answer 7

oh sorry - 4 or 6