New York City SHSAT 2017

Multiplying and dividing monomials is a little different. In addition and subtraction, you can combine only like terms. With

multiplication and division, you can multiply and divide terms that are different. When you multiply monomials, multiply the

coefficients of each term. (In other words, multiply the numbers that come before the variables.) Add the exponents of like

variables. Multiply different variables together.

WATCH OUT

Make sure you combine only like terms.

Use the FOIL method to multiply and divide binomials. FOIL stands for First, Outer, Inner, Last.

Exercise

ii. 5 a + 2b − 3(b + 3a)

iii. −3a − (−2a)

iv. 6 xy ÷ 2x

v. (m + 2)(m + 8)