### Home > CCAA8 > Chapter 10 Unit 11 > Lesson CCA: 10.3.3 > Problem10-142

10-142.

This problem is a checkpoint for factoring polynomials. It will be referred to as Checkpoint 10B.

Factor each polynomial expression.

1. $x^2−8x+7$

1. $y^2−2y−15$

1. $7x^2−63$

1. $3x^2+10x+8$