raizen
Apr 12, 2011, 05:54 AM
5x^-2y^140 over 256x^-1(-3x^-34y^-1)^-67
galactus
Apr 12, 2011, 06:59 AM
\frac{5x^{-2}y^{140}}{256x^{-1}(-3x^{-34}y^{-1})^{-67}}
This is not an equation, it is an expression.
Equations have equals signs.
What is it you need to do? Simplify?
First, write with positive exponents:
\frac{5y^{140}x(-3x^{-34}y^{-1})^{67}}{256x^{2}}
Power rule of exponents, distribute the 67 through by multiplying it by the exponents inside the parentheses.
\frac{5y^{140}(-3)^{67}x^{-2277}y^{-67}}{256x^{2}}
Add exponents of like bases, 140-67=73
Subtract exponents when dividing, -2277-2=-2279
Make everything positive exponents:
\frac{5\cdot (-3)^{67}y^{73}}{256x^{2279}}