Simplify 1x2-5x+6+1x2+3x+2-1x2-8x+15

Simplify $\frac{1}{x^{2} - 5 x + 6} + \frac{1}{x^{2} + 3 x + 2} - \frac{1}{x^{2} - 8 x + 15}$

Matching exercise

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

Step - 1

Step - 2

Step - 3