Question

Factoring trinomials, mind helping me out?

Answer 1

(x - 13)(x + 3)

Explanation:

The square term is just x^2 with no coefficient.

Write:

(x )(x )

Now you need two numbers that multiply to -39 and add to -10.

39 = 3 * 13

The numbers you need are -13 and 3 since -13 * 3 = -39, and -13 + 3 = -10.

Now write the numbers -13 and +3 in the parentheses.

(x - 13)(x + 3)

Answer 2

Answer: (x+3)(x-13)

Explanation:

write -10x as a difference to get

x^2+3x-13x-39

factor out x from the espression

x+(x+3)

factor out -13 from the expression

-13(x+3)

factor out x+3 from the expression

(x+3)(x-13)