Factor out the greatest common factor.21x4 - 9x3 + 15x2
A. 3x(7x3 - 3x2 + 5x)
B. 3(7x4 - 3x3 + 5x2)
C. 3x2(7x2 - 3x + 5)
D. x2(21x2 - 9x + 15)
Answer: C
Mathematics
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Choose the answer that lists three solutions for the equation.5x + 4y = 80
A. (1, 20), (16, 1), (1, 80) B. (0, 20), (16, 0), (5, 12) C. (0, 20), (16, 0), (12, 5) D. (1, 4), (5, 1), (0, 80)
Mathematics
List all the elements of B that belong to the specified set.B = 
Natural numbers
A. 10, 0
B. -4, 0, 10
C. 10, 
D. 10, 0, 
Mathematics
Restate the following statement in two other ways.4 divides 64
What will be an ideal response?
Mathematics
Multiply.(5x2y - 2xy + 9y2)(xy + 2y - x)
A. 5x3y3 - 8x2y2 - 5x2y + 2y2 + 9xy3 - 18y3 B. 5x3y2 + 8x2y2 - 5x3y - 13xy2 + 2x2y - 9xy3 - 18y3 C. 5x3y2 + 8x2y2 - 5x3y - 13xy2 + 2x2y + 9xy3 + 18y3 D. 5x3y3 - 8x2y2 - 5x2y - 2y2 - 9xy3 + 18y3
Mathematics