Use the quadratic formula to solve the equation.
?
?
A. x? = 
, ?x? = 
B. ?x? = 
, ?x? = -
C. ?x? = 
, ?x? = -
D. ??x? = 
, ?x? = -
E. ?x? = 
, ?x? = -
Answer: B
Mathematics
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Perform the indicated operation and write the answer in the form 
where a and b are real numbers.5i(2 - 8i)
A. 10i + 40i2 B. 10i - 40i2 C. 40 + 10i D. 10i - 40
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Shade the solution set to the system of inequalities.x + y ? 2 y ? 2
A. 
B. 
C. 
D. 
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Find the LCD for the rational expression.
, 
A. 6(x - 1) B. 36x2(x - 1) C. 6x2(x - 1) D. 6x(x - 1)
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Solve by factoring and using the principle of zero products.25k2 - 64 = 0
A. 8, 0
B. 
, 0
C. 
, - 
D. 
, - 
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