Question

How do you find the roots of the following equation?

I have my exam and i wanna know the way to solve this myself or with desmos.

Answer 1

Can you factor it??????

Answer 2

Try Symbolab, it has free steps and graphs. You can even do chemistry and math up to like calculus 4 on there.

Answer 3

how would i solve this guy

Answer 4

Alright, so what I mean by "Symbolab" was symbolab.com.

Answer 5

I think i got it for this one

Answer 6

\[9^{x^2-4x}=3^{-6}\]
\[(3^2)^{x^2-4x}=3^{-6}\]
\[3^{2(x^2-4x)}=3^{-6}\]
\[2(x^2-4x)=-6\]
\[x^2-4x=-3\]
\[x^2-4x+3=0\]
\[x^{2}-x-3x+3=0\]
x(x-1)-3(x-1)=0
(x-1)(x-3)=0
x=1,3