Match the name of the expression to the best example of that expression.
Recall the form of a general quadratic expression is
1. a = 1
2. a > 1
3. Perfect square trinomial
4. Difference of Two Squares
a. 25x^2 - 30x + 9
b. 2x^2 - 10x - 3
c. 81x^2 - 16
d. x^2 - x - 12
3. Perfect square trinomial - c. 81x^2 - 16
4. Difference of Two Squares - d. x^2 - x - 12
1. a = 1 - b. 2x^2 - 10x - 3