Question

Solve the equation : 5•3^2x=25

Answer 1

is that (3^2)x or 3^(2x)?

Answer 2

3^(2x)

Answer 3

I'm going to start with this hint then: ln(M^n) = n(ln(M))

Answer 4

the answer is going to look weird because of the natural log

Answer 5

So I would put 2x(ln(3)) ?

Answer 6

5 * 3^(2x) = 25
3^(2x) = 5
ln(3^(2x)) = ln(5)
2xln(3) = ln(5)
x = ln(5)/2ln(3)

Answer 7

Okay thanks