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Elementary and Intermediate Algebra
Mark Dugopolski, Southeastern Louisiana University
Polynomials and Exponents
Multiplication of Binomials
Warm-Ups
1
(x + 3)(x + 2) = x
2
+ 6
A)
TRUE
B)
FALSE
2
(x + 2)(y + 1) = xy + x + 2y + 2
A)
TRUE
B)
FALSE
3
(3a - 5)(2a + 1) = 6a
2
+ 3a - 10a - 5
A)
TRUE
B)
FALSE
4
(y + 3)(y - 2) = y
2
+ y - 6
A)
TRUE
B)
FALSE
5
(x
2
+ 2)(x
2
+ 3) = x
4
+ 5x
2
+ 6
A)
TRUE
B)
FALSE
6
(3a
2
- 2)(3a
2
+ 2) = 9a
2
- 4
A)
TRUE
B)
FALSE
7
(t + 3)(t + 5) = t
2
+ 8t + 15
A)
TRUE
B)
FALSE
8
(y - 9)(y - 2) = y
2
- 11y - 18
A)
TRUE
B)
FALSE
9
(x + 4)(x - 7) = x
2
+ 4x - 28
A)
TRUE
B)
FALSE
10
It is not necessary to learn FOIL as long as you can get the answer.
A)
TRUE
B)
FALSE
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