How do you simplify $(x^{- 3}) (y^{4}) (3 x^{5})$ $(x^-3)(y^4)(3x^5)$ leaving only positive exponents?

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Answer 1 · 2016-06-05T09:08:16

$3 x^{2} y^{4}$ $3x^2y^4$

we can sum exponents of the same variable:
$3 x^{- 3 + 5} y^{4}$ $3x^(-3+5)y^4$
$3 x^{2} y^{4}$ $3x^2y^4$

How do you simplify (x−3)(y4)(3x5)(x^-3)(y^4)(3x^5) leaving only positive exponents?