SOLUTION: simplify using positive exponents only. question 1 is: (2x^3y^-2)^-2 Question 2 is: (-5y^-3z)^3 Question 3 is: 4x^5(6x^-7y^2)

Algebra ->  Exponents -> SOLUTION: simplify using positive exponents only. question 1 is: (2x^3y^-2)^-2 Question 2 is: (-5y^-3z)^3 Question 3 is: 4x^5(6x^-7y^2)      Log On


   

Question 966359: simplify using positive exponents only.
question 1 is: (2x^3y^-2)^-2
Question 2 is: (-5y^-3z)^3
Question 3 is: 4x^5(6x^-7y^2)
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
%282x%5E3y%5E-2%29%5E%28-2%29=1%2F%282x%5E3y%5E-2%29%5E2
%282x%5E3y%5E-2%29%5E%28-2%29=1%2F%284x%5E6y%5E-4%29
%282x%5E3y%5E-2%29%5E%28-2%29=y%5E4%2F%284x%5E6%29
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%28-5y%5E%28-3z%29%29%5E3=-125y%5E%28-9z%29
%28-5y%5E%28-3z%29%29%5E3=-125%2Fy%5E%289z%29
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You're missing an exponent for x.
I'll call it A.
4x%5E5%286x%5EA-7y%5E2%29=20x%5E%285%2BA%29-28x%5E5y%5E2
If 5%2BA%3C0 then,
4x%5E5%286x%5EA-7y%5E2%29=20%2Fx%5E%285%2BA%29-28x%5E5y%5E2
If 5%2BA=0 then,
4x%5E5%286x%5EA-7y%5E2%29=20-28x%5E5y%5E2