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Simplifying Rational Expressions
Worksheet
Grade Level
Algebra II
ALG2.125 Simplifying Rational Expressions
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Choose the correct simplification and complete set of excluded values: ((x³ - 10x² + 21x) ÷ (x³ - 15x² + 71x - 105)) ÷ ((x² - 7x - 8) ÷ (x + 5))
A
(x³ - 7x² - 8x) ÷ (x² - 25); excluded values: x ≠ -5, x ≠ -1, x ≠ 3, x ≠ 5, x ≠ 7, x ≠ 8
B
(x² + 5x) ÷ (x³ - 12x² + 27x + 40); excluded values: x ≠ -5, x ≠ -1, x ≠ 3, x ≠ 5, x ≠ 7, x ≠ 8
C
(x³ - 12x² + 27x + 40) ÷ (x² + 5x); excluded values: x ≠ -5, x ≠ -1, x ≠ 3, x ≠ 5, x ≠ 7, x ≠ 8
D
(x² + 5x) ÷ (x³ - 12x² + 27x + 40); excluded values: x ≠ -5, x ≠ 3, x ≠ 5, x ≠ 7
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