Perform the indicated operations. Write the result using only positive exponents. Assume all variables represent nonzero real numbers.
A. 
B. -315
C. 
D. 
Answer: D
Mathematics
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Write the following phrase as an algebraic expression and simplify if possible. Let x represent the unknown number.The sum of four times a number, 1, six times a number, and 3
A. 10x + 2 B. 10x + 22 C. 10x + 4 D. 4x + 10
Mathematics
Multiply. Simplify the answer completely.- 
? 
A. 
B. - 
C. - 
D. 
Mathematics
Use Cramer's Rule (if applicable) to solve the system of equations.
A. {(1, -2)} B. {(-1, -1)} C. {(0, -1)} D. ?
Mathematics
Factor the trinomial that is a perfect square. If it is not a perfect square, respond "not a perfect square."25x2 + 70xy + 49y2
A. not a perfect square B. (5x + 7y)(5x - 7y) C. (5x + 7)2 D. (5x - 7)2
Mathematics