Simplify the expression by removing parentheses and combining like terms.9x - (3x - 6) - (-7x + 1)
A. 13x + 5
B. 13x + 7
C. 13x - 7
D. 19x + 5
Answer: A
Mathematics
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A. 1
B. 
C. 
D. 0
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Find the area.Find the area between the graph of y = 
and the x-axis, for -? < x ? 0.
A. 4 B. 1 C. 2 D. 8
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Multiply.(x - 1)(x - 9)
A. x2 + 9x - 10 B. x2 - 10x - 11 C. x2 - 10x + 9 D. x2 - 11x + 9
Mathematics
Factor completely. If the polynomial cannot be factored, say it is prime.x4 - 64
A. (x2 - 8)2 B. (x2 + 8)(x2 - 8) C. prime D. (x2 + 8)2
Mathematics