Factoring Trinomials of GCF = 1

Polynomials with three terms are called trinomials.

There are many different techniques to factor a trinomial, so use your favorite!

Remember, it will be helpful to factor out a greatest common factor (GCF) first, if possible.

Select the trinomials below who only have a GCF = 1.
(Select all that apply.)

x^2+4x
x^2+4x-5
2x^2+8x-10
3x^2-3x-6
3x^2-7x+9