1.

What is the value of \(\frac{{\left( {{a^2} +{b^2}} \right)\left( {a - b} \right) - {{\left( {a - b} \right)}^3}}}{{{a^2}b - a{b^2}}}?\)

A. 0
B. 1
C. -1
D. 2
Answer» E.


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