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a-b^-2 / b-a^2
asked Oct 18, 2014 in ALGEBRA 2 by doan12345 Pupil

1 Answer

+1 vote

The expression is (a - b-2)/(b - a2).

Rewrite b-2 as 1/b2.

= [a - (1/b2)] / (b - a2)

= [(ab2 - 1)/b2] / (b - a2)

= (ab2 - 1) / b2(b - a2)

= (ab2 - 1) / (b3 - b2a2).

answered Oct 18, 2014 by casacop Expert

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