[ High School and Self-Education Board ]
Posted by Jane in NC on 17:19 Nov 20
In Reply to: Math gurus please help!!! We can't figure out this kind of problem... posted by Jill W.
"Just 'e' it!"
Use each side of your equation as an exponent for base e:
ln x^3 = 5 => e^(ln x ^ 3) = e^5
Remember that e^x and ln x are inverse functions. So you are left with x^3 on the left. You should be able to take it from here.
Jane