Multiply.(x + 1)(x2 - x + 1)
A. x3 - 1
B. x3 - 2x2 - 2x - 1
C. x3 + 1
D. x3 + 2x2 + 2x + 1
Answer: C
Mathematics
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A. 5.4 B. 7.6 C. 2.8 D. 2.5
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Find the value of (f ? g)' at the given value of x.f(u) = tan 
, u = g(x) = x2, x = 6
A. -6? B. 12 C. -36? D. 6?
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Write the expression in the form a + bi, where a and b are real numbers.-7 + 
A. 7 - 2i
B. -7 - 2i
C. 7 + 2i
D. -7 + 2i
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Solve the quadratic inequality. Graph the solution.5x2 + 2x + 3 ? 0
A. (-?, ?)
B. no solution
C. 
D. 
Mathematics