Find x2+20x+36x2-3x-28-x2+12x+4x2-3x-28

Find $\frac{x^{2} + 20 x + 36}{x^{2} - 3 x - 28} - \frac{x^{2} + 12 x + 4}{x^{2} - 3 x - 28}$

Matching exercise

Match the items on the right to the items on the left.

Step - 1

Step - 2

Step - 3