Unit Test — Unit test Answers
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The model represents a polynomial of the form ax2 + bx + c.
A
3x2 – 4x – 1 = (3x + 1)(x – 1)B
3x2 – 2x – 1 = (3x – 1)(x + 1)C
3x2 – 4x + 1 = (3x – 1)(x – 1)D
3x2 – 2x + 1 = (3x – 1)(x – 1)22
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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?
A
2x + 5B
2x − 5C
x2 − 2D
x2 + 223
The partial factorization of x2 – x – 12 is modeled with algebra tiles.
A
3 negative unit tilesB
3 positive unit tilesC
4 negative unit tilesD
4 positive unit tiles24
Which is the completely factored form of 4x2 + 28x + 49?
A
(x + 7)(4x + 7)B
4(x + 7)(x + 7)C
(2x + 7)(2x + 7)D
2(x + 7)(x + 7)25
Which expression is equivalent to 36x2 − 25?
A
(18x)2 + (−5)2B
(18x)2 − (5)2C
(6x)2 + (−5)2D
(6x)2 − (5)2Did you find these answers helpful?
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