Find the real solutions of the equation.x4 - 23x2 - 50 = 0
A. {-
, 
}
B. {-25, 2}
C. {-5, 5}
D. no real solution
Answer: C
Mathematics
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Perform the subtraction. 
A. 89,626 B. 85,542 C. 85,626 D. 85,622
Mathematics
Solve the system. If there is no solution or if the system's equations are dependent, so state.
A. {(-5, 8, 6)} B. no solution or ? C. {(-5, 6, 8)} D. infinitely many solutions; dependent equations
Mathematics
Perform the indicated operation. If the fraction is undefined, say so.
A. 0
B. 122
C. 
D. undefined
Mathematics
Find an expression for the nth term of the arithmetic sequence.-4, 0, 4, 8, 12, . . .
A. an = 4n - 8 B. an = 4n + 8 C. an = -4 + 4n D. an = -4n + 8
Mathematics