Question 486581
5^-2=(1/5)^2=(1*1/5*5)=1/25
what i did: 
all the numbers raised to negative expoents are transformed in fraction and raised to expoent of the same value but positive now and solve normally. The denominator and numerator are raised by the same expoent. For example: 
x^-2 will be (1/x)^2=(1^2/x^2)=(1*1/x*x)