Form a polynomial whose zeros and degree are given. Use a leading coefficient of 1. Zeros: 2, multiplicity 2; -2, multiplicity 2; degree 4
A. f(x) = x4 + 8x2 + 16
B. f(x) = x4 + 4x3 - 8x2 + 8x - 16
C. f(x) = x4 - 4x3 + 8x2 - 8x + 16
D. f(x) = x4 - 8x2 + 16
Answer: D
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Solve by using the quadratic formula.7x2 + 12x = - 1
A. 
B. 
C. 
D. 
Factor completely. If the polynomial is prime, state so.ab4 - 9a3b2
A. ab2(b + 3a)(b - 3a) B. ab4 - 9a3b2 C. ab2(b - 3a)2 D. a(b2 + 3ab)(b2 - 3ab)
Solve the equation by the square root property. If possible, simplify radicals or rationalize denominators. Express imaginary solutions in the form 
5x2 = 75
A. {±15}
B. {37.5}
C. {16}
D. {±
}
Find the ordinary interest or exact interest as specified. Round to the nearest cent.David Owens borrows $7200 on October 26 and agrees to repay the loan on December 31 at 11% interest. How much ordinary interest will be due?
A. $145.20 B. $792.00 C. $7345.20 D. $147.40