Fright535 Messages 1 Reaction score 0 Thread starter Feb 13, 2018 #1 I'm taking an online class and I was doing some very simple exponential equations when this was thrown at me, and I have no clue how to solve it. 27^x=1/√3
I'm taking an online class and I was doing some very simple exponential equations when this was thrown at me, and I have no clue how to solve it. 27^x=1/√3
MarkFL Gold Member MHB Messages 13,284 Reaction score 12 Feb 13, 2018 #2 Hello, and welcome to MHB! (Wave) We are given to solve: $$27^x=\frac{1}{\sqrt{3}}$$ Can you write both sides of the equation as a power of 3?
Hello, and welcome to MHB! (Wave) We are given to solve: $$27^x=\frac{1}{\sqrt{3}}$$ Can you write both sides of the equation as a power of 3?
MarkFL Gold Member MHB Messages 13,284 Reaction score 12 Feb 15, 2018 #3 To follow up, we may write: $$3^{3x}=3^{-\frac{1}{2}}$$ Since we have like bases, we can simply equate the exponents: $$3x=-\frac{1}{2}\implies x=-\frac{1}{6}$$
To follow up, we may write: $$3^{3x}=3^{-\frac{1}{2}}$$ Since we have like bases, we can simply equate the exponents: $$3x=-\frac{1}{2}\implies x=-\frac{1}{6}$$