Add. Simplify, if possible.
+ 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Factor the polynomial using the negative of the greatest common factor.-18x4 + 6x3 - 8x2
A. -2x2(9x2 + 3x - 4) B. -2x2(9x2 - 3x + 4) C. 2x2(-9x2 + 3x - 4) D. -2x(9x3 - 3x2 + 4x)
Mathematics
Subtract the polynomials. Express your answer in standard form.17x3 - 19x2 
A. 20x3 - 33x2 B. 14x3 - 33x2 C. 20x3 - 5x2 D. 14x3 - 5x2
Mathematics
Simplify the expression.-2(10r + 4) + 10(7r + 2)
A. 8r + 2 B. 50r + 4 C. -28r D. 50r + 12
Mathematics
Solve the problem.A bag of marbles has twice as many blue marbles as green marbles, and the bag has at least 36 marbles in it. At least how many green marbles does it have?
A. At least 12 green marbles B. At least 13 green marbles C. At least 24 green marbles D. At least 18 green marbles
Mathematics