Question 1, log3 x = 9 log x 3
Question 2, 4 log4 x - 9 log x 4 = 0
i got problem finding x, please help me with the workings.
i will choose 10 pts within 10 mins.
Question 2, 4 log4 x - 9 log x 4 = 0
i got problem finding x, please help me with the workings.
i will choose 10 pts within 10 mins.
-
I assume the first number is the base and the second number is the power...
Use the change of base formula.
Q1: log x / log 3 = log 3^9 / log x. Then simplify. (log x) ^ 2 = (log 3)^2 times 9. Take the square root of both sides. Solve the right side. Raise the 10 to the power of the right side, and that answer should equal x.
Q2: can be solved in the same way
Use the change of base formula.
Q1: log x / log 3 = log 3^9 / log x. Then simplify. (log x) ^ 2 = (log 3)^2 times 9. Take the square root of both sides. Solve the right side. Raise the 10 to the power of the right side, and that answer should equal x.
Q2: can be solved in the same way