SOLUTION: solve for x 2*logx=20

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: solve for x 2*logx=20      Log On


   



Question 1015517: solve for x
2*logx=20

Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!
2%2Alog%28%28x%29%29%22%22=%22%2220

Divide both sides by 2

log%28%28x%29%29%22%22=%22%2210

When the base of a logarithm is not written, it
is understood to be 10.

log%2810%2C%28x%29%29%22%22=%22%2210

Use the principle that the logarithm equation log%28B%2C%28A%29%29=C is
equivalent to the exponential equation A=B%5EC

x%22%22=%22%2210%5E10

x%22%22=%22%2210000000000

Edwin