Please help with this

Match the name of the expression to the best example of that expression ax^2 + bx c
a = 1
a greater 1
Perfect square trinomial
Difference of two squares
4x^2 + 12x + 9, 3x^2 - 13x - 10, 25x^2 -36,
X^ - 6x + 8

a = 1: 4x^2 + 12x + 9

a greater 1: 3x^2 - 13x - 10
Perfect square trinomial: x^2 - 6x + 8
Difference of two squares: 25x^2 - 36