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Key Quiz 7.4
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1
Match the quadratic expressions on the left with their factors on the right:
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A)1b, 2d, 3a, 4c, 5e
B)1e, 2a, 3b, 4d, 5c
C)1a, 2e, 3b, 4c, 5d
D)1a, 2e, 3c, 4d, 5b
2
Find the binomials that represent the length and width of the rectangle shown:
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A)b + 1, b + 24
B)b + 2, b + 12
C)b + 3, b + 8
D)b + 4, b + 6
3
Find the dimensions of the rectangle shown by factoring the expression for the area given that w = 5 cm:
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A)2 cm x 3 cm
B)2 cm x 5 cm
C)2 cm x 7 cm
D)2 cm x 9 cm
4
If the trinomial x2 + bx -12 can be factored, then b could be equal to:
A)1, 4, or 11
B)-11, -4, -1, 1, 4, or 11
C)-12, -4, -1, 1, 4, or 12
D)-13, -11, -4, -1, 1, 4, 11, or 13
5
If x2 + bx + c = (x + p)(x + q), and c < 0, then which of the following MUST be true?
A)Both p and q must be negative.
B)Both p and q must be positive.
C)Either p = 0 or q = 0.
D)Either p is positive and q is negative OR p is negative and q is positive.





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