Find all solutions to the following equation.
A. 
B. no solution
C. 
D. 
E. 
Answer: E
Mathematics
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Find the exact value of the expression.cos
A. 
B. 1
C. 
D. 
Mathematics
Multiply the polynomials and simplify by combining like terms.(2x2 + 5x + 5)(x2 - 5x - 4)
A. 2x4 - 5x3 - 28x2 - 45x - 20 B. 2x4 - 10x3 - 28x2 - 45x - 20 C. 2x4 - 10x3 - 33x2 - 45x - 20 D. 2x4 - 5x3 - 33x2 - 45x - 20
Mathematics
Solve using the quadratic formula.x2 - 4x + 20 = 0
A. 2 ± 4i B. -2 ± 4i C. 6, -2 D. 4 ± 8i
Mathematics
Factor the polynomial by grouping.x2 + 4x + 7x + 28
A. (x - 4)(x - 7) B. (x + 4)(x + 7) C. (x - 4)(x + 7) D. prime
Mathematics