SOLUTION: (7^2)^x=1 solve for x. x=0 but I don't know what the steps are to solve this.

Algebra ->  Exponents-negative-and-fractional -> SOLUTION: (7^2)^x=1 solve for x. x=0 but I don't know what the steps are to solve this.       Log On


   

Question 956410: (7^2)^x=1
solve for x.
x=0
but I don't know what the steps are to solve this.
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

%287%5E2%29%5Ex=1...... exponent rule: Whenever you have an exponent expression that is raised to a power, you can multiply the exponent and power
7%5E%282x%29=1.....one other rule states anything to the power zero is just "1"
since your exponent is 2x, it will be equal to zero only
if only x=0
so,7%5E%282%2A0%29=7%5E0=1