Factoring Polynomials: Sum and Difference of Cubes Answers
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Which monomial is a perfect cube?
A
49p9q3r24B
81p12q15r12C
121p9q3r6D
343p6q21r62
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Which is a sum of cubes?
A
a3 + 18B
a6 + 9C
a9 + 16D
a12 + 83
What is the cube root of 27x18?
A
3x6B
3x9C
9x6D
9x94
Which product will result in a sum or difference of cubes?
A
(x + 7)(x2 – 7x + 14)B
(x + 8)(x2 + 8x + 64)C
(x – 9)(x2 + 9x + 81)D
(x – 10)(x2 – 10x + 100)5
Which is a difference of cubes?
A
x6 – 27B
x15 – 36C
x16 – 64D
x5 – 1256
Which expression is equivalent to ?
A
6xy2z4B
18xy3z6C
36xy2z4D
72xy3z67
The factorization of 8x3 – 125 is (2x – 5)(jx2 + kx + 25). What are the values of j and k?
A
j = 6 and k = –10B
j = 8 and k = 10C
j = 4 and k = 25D
j = 4 and k = 108
Which number in the monomial 215x18y3z21 needs to be changed to make it a perfect cube?
A
3B
18C
21D
2159
What is the cube root of 64x12?
A
4x4B
4x6C
8x4D
8x610
Which expression is equivalent to ?
A
7x3y4z2B
7x3y6z2C
49x3y6z2D
49x3y4z2Did you find these answers helpful?
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