Factor the trinomial completely.12a2 - 52a - 40

A. 4(3a - 2)(a + 5)
B. 4(3a + 2)(a - 5)
C. (3a + 2)(4a - 20)
D. (12a + 8)(a - 5)


Answer: B

Mathematics

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A.
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E.

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Solve the problem.A piece of cardboard is twice as long as it is wide. It is to be made into a box with an open top by cutting 4 cm squares from each corner and folding up the sides. Let x represent the width of the original piece of cardboard. Determine a function V that represents the volume of the box in terms of x.

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A. an = 
B. n(n + 2)
C. an = 
D. an = 

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Multiply or divide as indicated.-10 ? (-8)

A. -90 B. 90 C. 88 D. 80

Mathematics