Solve the quadratic equation by completing the square.x2 - 4x + 8 = 0
A. {2 + 2i}
B. {4, 0}
C. {2 + 2i, 2 - 2i}
D. {2 - 4i, 2 + 4i}
Answer: C
Mathematics
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Simplify the algebraic expression.6x - 3x
A. -3x B. 3x C. 9x D. -9x
Mathematics
Perform the indicated operation.- 
- 
A. - 
B. - 
C. 
D. - 
Mathematics
Use the formula
?
?
to find the integral.
?
What will be an ideal response?
Mathematics
A formula is given along with the values of all but one of the variables in the formula. Find the value of the variable not given. Round to the nearest hundredth where necessary.A = 
(b + B)h; A = 171, b = 20, B = 18
A. h = 360 B. h = 9 C. h = 133 D. h = 19
Mathematics