AnswersFL-1200710-Mathematics for College Algebra AAdding and Subtracting Polynomials

Adding and Subtracting Polynomials — Unit test Answers

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23

Factor –7x3 + 21x2 + 3x – 9 by grouping. What is the resulting expression?

A
(3 – 7x)(x2 – 3)
B
(7x – 3)(3 + x2)
C
(3 – 7x2)(x – 3)
D
(7x2 – 3)(3 + x)
24

Which will result in a difference of squares?

A
(negative 7 x + 4)(negative 7 x + 4)
Option A
B
(negative 7 x + 4)(4 minus 7 x)
Option B
C
(negative 7 x + 4)(negative 7 x minus 4)
Option C
D
(negative 7 x + 4)(7 x minus 4)
Option D
25

Which is a factor of x2 + 8x – 48?

A
(x – 6)
B
(x + 4)
C
(x – 16)
D
(x + 12)

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