### Home > CCAA8 > Chapter 6 Unit 7 > Lesson CCA: 6.2.4 > Problem6-104

6-104.

This problem is a checkpoint for multiplying polynomials and solving equations with parentheses. It will be referred to as Checkpoint 6B.

In parts (a) and (b) rewrite the expression without parentheses and in parts (c) and (d) solve each equation.

1. $2x(x+3)$

1. $(3x+2)(x−3)$

1. $4y-2(6−y)=6$

1. $x(2x−4)=(2x+1)(x−2)$