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Elementary and Intermediate Algebra
Mark Dugopolski, Southeastern Louisiana University
Polynomials and Exponents
Multiplication of Polynomials

Warm-Ups



1

3x3 · 5x4 = 15x12 for any value of x.
A)TRUE
B)FALSE
2

3x2 · 2x7 = 5x9 for any value of x.
A)TRUE
B)FALSE
3

(3y3)2 = 9y6 for any value of y.
A)TRUE
B)FALSE
4

-3x(5x - 7x2) = -15x3 + 21x2 for any value of x.
A)TRUE
B)FALSE
5

2x(x2 - 3x + 4) = 2x3 - 6x2 + 8x for any number x.
A)TRUE
B)FALSE
6

-2(3 - x) = 2x - 6 for any number x.
A)TRUE
B)FALSE
7

(a + b)(c + d) = ac + ad + bc + bd for any values of a, b, c, and d.
A)TRUE
B)FALSE
8

-(x - 7) = 7 - x for any value of x.
A)TRUE
B)FALSE
9

83 - 37 = -(37 - 83)
A)TRUE
B)FALSE
10

The opposite of x + 3 is x - 3 for any number x.
A)TRUE
B)FALSE








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