AnswersIntegrated Math II CR SUSD EXPractice TestQuestion 7
7
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Practice Test

Question 7 • Integrated Math II CR SUSD (EX)

Teresa is factoring this polynomial by grouping. Which common factors should be used in the next step of factoring? 10 x cubed plus 3 x squared minus 20 x minus 6 open paren 10 x cubed plus 3 x squared close paren plus open paren negative 20 x minus 6 close paren

Answer
A
2 x squared and negative 2 x
B
x squared and negative 2 x
C
x squared and negative 2
D
2 x squared and negative 2

Explanation

For the first group, 10x³ + 3x², the greatest common factor is x², giving x²(10x + 3). For the second group, −20x − 6, use −2, giving −2(10x + 3). So the common factors are x² and −2, choice C.

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