Simplify. Assume that all variables represent any real number.
A. 
B. -
C. x
D. -x
Answer: C
Mathematics
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Find all real solutions of the polynomial equation 
a. 
b. 
c. 
d. 
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Express the number in scientific notation.2500
A. 2.5 × 10-2 B. 2.5 × 10-3 C. 2.5 × 103 D. 2.5 × 102
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Write as a fraction in simplest form.13
%
A. 
B. 
C. 
D. 
Mathematics
Solve the equation by making an appropriate substitution.x4 - 22x2 - 75 = 0
A. {- 
, 
, -5i, 5i}
B. {-25, 3}
C. {-5, 5, -i
, i
}
D. {5, i
}
Mathematics