Question

5(2)^(3x)-4=13 solve for x

Answer 1

?????

Answer 2

5(2)^(3x)-4=13
5(2)^(3x) = 17
2^(3x) = 17/5
take logarithms of both sides:
3x * ln2 = ln 3.4
con u continue from here?

Answer 3

no

Answer 4

ok
divide both sides by ln 2

3x = ln 3.4 / ln2
x = ln3.4 / (3 ln 2 )

Answer 5

thats the answer?

Answer 6

you need to compute ln 3.4 / (3 ln 2) with your calculator

Answer 7

in radian or degree mode?

Answer 8

whenever you have the variable in the index take logs

Answer 9

it doesn't matter unless x is an angle

Answer 10

ok