SOLUTION: Hello, I'm reviewing for a final and need some help checking this problem: Simplify each expression. Leave only positive exponents in your answers: 2xy^-3(3x^-1y^4) thank

SOLUTION: Hello, I'm reviewing for a final and need some help checking this problem: Simplify each expression. Leave only positive exponents in your answers: 2xy^-3(3x^-1y^4) thank

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Question 195030: Hello, I'm reviewing for a final and need some help checking this problem:
Simplify each expression. Leave only positive exponents in your answers:
2xy^-3(3x^-1y^4)
thanks!
Answer by RAY100(1637) (Show Source): You can put this solution on YOUR website!
( 2xy^-3 ) ( 3 x^-1 y^4 )
.
( 2x/y^3) ( 3 y^4 / x^1 )
.
2*3* x/x * y^4/y^3
.
6 * y ,,,,,,ANSWER
.
checking, let x=1, y=2,,subst in original and answer, both give 12 ,,,ok
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