Factor completely. If the polynomial cannot be factored, write "prime."3x3 + 6x2y - 45xy2
A. 3x(x - 3y)(x + 5y)
B. (3x2 + 9xy)(x - 5y)
C. 3x(x + 3y)(x - 5y)
D. (x - 3y)(3x2 + 15xy)
Answer: A
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Find the indicted product and simplify if possible.The expression 9x2 - 18(x - 3)2 - (x - 6)3 was used to determine the stress in a section of metal.
A. -x3 - 21x2 + 180x - 378 B. -x3 - 9x2 + 378 C. -x3 - 303x2 + 36x + 207 D. -x3 + 9x2 + 54
Answer the given question.Where are all points whose first coordinate is positive?
A. In third or fourth quadrant B. In second or third quadrant C. In first or fourth quadrant D. In first or second quadrant
Choose the best answer.The mass of a bicycle helmet is about how much?
A. 271 milligrams B. 271 metric tonnes C. 271 kilograms D. 271 grams
Determine the degree of the polynomial.-2y4 + 7y3 - 5y2 + y - 7
A. 10 B. -2 C. -7 D. 4