Solve the polynomial equation in the complex numbers.x3 - 6x2 + 7x + 2 = 0
A. {2, 4 + 
, 4 - 
}
B. {-2, 4 + 
, 4 - 
}
C. {2, 2 + 
, 2 - 
}
D. {1, -1, -2}
Answer: C
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Perform the indicated operations. (Remember that the order of operations is to multiply or divide from left to right.)
÷ 
÷ 
A. 
B. 
C. 
D. 
Solve the problem.The area of a rectangular wall in a classroom is 348 square feet. Its length is 7 feet shorter than three times its width. Find the length and width of the wall of the classroom.
A. width = 12 ft; length = 29 ft B. width = 12 ft; length = 43 ft C. width = 12 ft; length = 19 ft D. width = 12 ft; length = 33 ft
Evaluate the function.Find f(k) when f(x) = 3x2 + 4x + 5
A. 3k2 + 16k + 5 B. 3k2 + 4k + 25 C. 3k2 + 4k + 5 D. 9k2 + 16k + 25
Solve the polynomial equation.x3 - 9x2 + x - 9 = 0
A. x = 9, -i, i B. x = -9, -i, i C. x = -9, 9, i D. x = -1, 1, 9