SOLUTION: How do you solve rational expression using Lowest Common Denominator and cross multiplying? 5/a^2= (-4/a) +1 5 over a squared = (negative 4 over a) plus 1

SOLUTION: How do you solve rational expression using Lowest Common Denominator and cross multiplying? 5/a^2= (-4/a) +1 5 over a squared = (negative 4 over a) plus 1

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Question 456022: How do you solve rational expression using Lowest Common Denominator and cross multiplying?
5/a^2= (-4/a) +1
5 over a squared = (negative 4 over a) plus 1
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
5/a^2= (-4/a) +1
5=-4a+a^2 Multiply each side by a^2.
a^2-4a-5=0
(a-5)(a+1)=0
a=5, a=-1
.
Ed
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