Question

Solve 5^(x + 5) = 9^x

Answer 1

Take natural logarithm on both sides.

Answer 2

Can you handle it?

Answer 3

ln 5^(x+5)= ln (9^x)

Answer 4

Yeah, do you know what to do with exponent?

Answer 5

(x+5) ln(5)= ln (9^x)

Answer 6

Yes. Yes. Do the same thing on right side, then solve for x.

Answer 7

So you can find the x?

Answer 8

here are the answer choices:

x ≈ –3.63

x ≈ –0.28

x ≈ 0.07

x ≈ 13.69