Unit Test — Unit test

Question 1

Which model represents the factors of x2 + 9x + 8?

Revolt · Accepted Answer

An algebra tile configuration. 9 tiles are in the Factor 1 spot: 1 is labeled + x and 8 are labeled +. 2 tiles are in the Factor 2 spot: 1 is labeled + x and 1 is labeled +. 18 tiles are in the Product spot: 1 is labeled + x squared, 9 are labeled + x, and 8 are labeled +.

Question 2

The table represents the multiplication of two binomials.

Revolt · Accepted Answer

B and C

Question 3

The polynomial 2x3 − 5x2 + 4x − 10 is split into two groups, 2x3 + 4x and −5x2 − 10. The GCFs of each group is then factored out. What is the common binomial factor between the two groups after their GCFs have been factored out?

Revolt · Accepted Answer

x2 + 2

Question 4

Factor x3 – 7x2 – 5x + 35 by grouping. What is the resulting expression?

Revolt · Accepted Answer

(x2 – 5)(x – 7)

Question 5

The expression 40x2 – 65x + 50 represents the sum of the interior angles of a regular pentagon in degrees. If the interior angles of the pentagon are equal, which expression represents the measure of two angles?

Revolt · Accepted Answer

2(8x2 – 13x +10)

Unit Test — Unit test Answers

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