May 8, 2021 · In the second to last step it looks like you implied that $\ln (e^ {2x}-e^x)=\ln (e^ {2x})-\ln (e^x)$. That is not always true.

Nov 15, 2016 · Subtract two exponents with same base Ask Question Asked 9 years ago Modified 5 years, 6 months ago

So is there any exponent rules/laws that apply to adding or subtracting exponents with the same base which I can use here, in order to make sure I don't get less point for taking shortcuts …

Jun 30, 2016 · I was told that I have to make the exponents the same, and to do that I had to move one of the decimals, so I made Four x Ten to negative Two into 40 x Ten to negative …

If $2^4 - 2^3 = 2^3$ and $2^5 - 2^4 = 2^4$, then is below a rule of subtracting exponents with similar base and exponents which are just $1$ away from each other?

Subtracting 2 fractions with variables in the denominator that have different exponents. Ask Question Asked 11 years, 6 months ago Modified 11 years, 6 months ago

May 20, 2016 · Subtracting powers with variable in exponent Ask Question Asked 9 years, 3 months ago Modified 9 years, 1 month ago

Jun 1, 2016 · Help with adding and subtracting exponents - Ask Question Asked 9 years, 6 months ago Modified 9 years, 6 months ago

Nov 3, 2020 · Here is the question: Find all prime factors of $3^{18}-2^{18}$ No Calculators allowed, and it is a competition problem, fastest answers are the best. How can I approach this …

I'm having trouble understanding exponents in the denominator. For example: I have the expression: $\\displaystyle 1 - \\frac{1}{3^n} + \\frac{2}{3^{n+1}}$. I know that this simplifies to …