Question

What are the binomial factors of `x^2+8x+15`?

Answer 1

`x^2+8x+15=(x+5)(x+3)`

Explanation:

Trinomials have the form:

`ax^2+bx+c`

When factoring trinomials where `a=1`, we look for numbers, `n, m` where:

`nxxm=c, n+m=b`

In this case, we can use `5, 3` as those numbers:

`x^2+8x+15=(x+5)(x+3)`