how do you solve 0.4^-2??
A negative exponent becomes POSITIVE in the denominator
.4^-2 = 1/.4^2 = 1/(.16) = 6.25
First lets take an example like 5-2
to remove the minus u do 1/52
and the same for 0.4-2
u do 1/0.4 2
+36919 
