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Polynomial Operations — Test Answers

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What is the product? open paren 7 x squared close paren times open paren 2 x cubed plus 5 close paren times open paren x squared minus 4 x minus 9 close paren

A
14 x to the 7th power minus 56 x to the 6th power minus 126 x to the 5th power plus 35 x to the 4th power minus 140 x cubed minus 315 x squared
B
14 x to the 5th power minus x to the 4th power minus 46 x cubed minus 58 x squared minus 20 x minus 45
C
14 x to the 6th power minus 56 x to the 5th power minus 91 x to the 4th power minus 140 x cubed minus 315 x squared
D
14 x to the 12th power minus 182 x to the 6th power plus 35 x to the 4th power minus 455 x squared
23

Which expression is equivalent to open paren 4 x to the 5th power plus 11 close paren squared ?

A
16 x to the 10th power plus 88 x to the 5th power plus 121
B
16 x to the 5th power plus 121
C
16 x to the 25th power plus 88 x to the 5th power plus 121
D
16 x to the 10th power plus 121
25

The volume of a cylinder is given by the formula cap v is equal to pi r squared h , where r is the radius of the cylinder and h is the height. Which expression represents the volume of this cylinder?

A
2 pi x cubed plus 7 pi x squared minus 18 pi x minus 63 pi
B
2 pi x cubed minus 5 pi x squared minus 24 pi x plus 63 pi
C
2 pi x cubed plus 7 pi x squared plus 18 pi x plus 63 pi
D
2 pi x cubed minus 12 pi x squared minus 24 pi x plus 63 pi

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Polynomial Operations — Test Answers — Algebra II