### Home > INT1 > Chapter 4 > Lesson 4.1.4 > Problem4-45

4-45.

Simplify each expression below, if possible.

1. $5x(3x)$

Multiply the two terms. Use the Commutative Property of Multiplication to rearrange the terms.

$15x^2$

1. $5x+3x$

Combine like terms.

1. $6x(x)$

1. $6x+x$
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