Multiply.(3x - 1)(x - 7)
A. 3x2 - 23x + 7
B. x2 + 7x - 22
C. x2 - 22x - 23
D. 3x2 - 22x + 7
Answer: D
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A. -0.12 lb. B. -28.4 lb. C. -122.36 lb. D. -1223.6 lb.
Simplify the following by combining like terms.2x7 + 6x3 + 5x7
A. 13x17 B. 7x7 + 6x3 C. 13x3 D. cannot be simplified
Multiply and express the product as a mixed number or an integer.2 ? 5
A. 10
B. 10
C. 11
D. 10
Evaluate the expression for the given replacement values.3xy2 - 6 for x = 3, y = 4
A. 1290 B. 426 C. 66 D. 138