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Simplify Rational Expressions
Grade Level
GMAT
Q.105 Simplify Rational Expressions
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The expression (m
4
- 3*m
3
*n + m*n
3
- 3*n
4
)/(m
4
+ m
3
*n + m*n
3
+ n
4
) is to be written in lowest terms. Which choice is correct?
A
(m + n)/(m - 3*n)
B
(m - 3*n)/(m + n)
C
(-m + 3*n)/(m + n)
D
(m - 3*n)*(m
2
- m*n + n
2
)
E
(m - 3*n)/((m + n)
2
*(m
2
- m*n + n
2
))
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