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Simplify the Complex Fraction a−2−b−17a−1+3b−2\frac{a^{-2}-b^{-1}}{7 a^{-1}+3 b^{-2}} A) ab2−a27b2+3a2b\frac{a b^{2}-a^{2}}{7 b^{2}+3 a^{2} b}

Question 68

Multiple Choice

Simplify the complex fraction.
- a−2−b−17a−1+3b−2\frac{a^{-2}-b^{-1}}{7 a^{-1}+3 b^{-2}}


A) ab2−a27b2+3a2b\frac{a b^{2}-a^{2}}{7 b^{2}+3 a^{2} b}

B) b2−a27ab2+3a2\frac{b^{2}-a^{2}}{7 a b^{2}+3 a^{2}}

C) b2−a2b7b2+3a2\frac{b^{2}-a^{2} b}{7 b^{2}+3 a^{2}}

D) b2−a2b7ab2+3a2\frac{b^{2}-a^{2} b}{7 a b^{2}+3 a^{2}}

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