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Key Quiz 5.4
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1
Factor fully: 36x2
A)12(3x2 - 2x)
B)x(36x - 24)
C)12x(3x - 2)
D)12x(3x + 2)
2
Factor fully: 4x2 + 12x + 8
A)4(x + 2)(x + 1)
B)4(x2 + 2x + 2)
C)4x(x + 3)
D)4(x - 2)(x - 1)
3
Factor fully: 75x2 - 27y2
A)3(25x2 - 9y2)
B)3(5x - y)2
C)3(5x + 3y)(5x - 3y)
D)3(5x + 2y)2
4
Factor fully: -1.5x2 + 12x + 30
A)-1.5(x2 - 8x - 20)
B)-1.5(x - 4)(x + 5)
C)-1.5(x + 10)(x - 2)
D)-1.5(x - 10)(x + 2)
5
The surface area of a cylinder is given by the formula SA - 2πr2 + 2πrh. Write a fully-factored expression (in terms of h) for a cylinder whose radius is twice its height.
A)12πr2
B)4πh2
C)3/2πh2
D)8πh2 + 4πh2





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