Solve the following equations. $\displaystyle 3^{x2-5}-9^{x-1}=0$ i ended up with $\displaystyle {1/{243}}y - {1/9}y =0$ no clue where i went wrong my working out is pretty screwed up or i'd post that too. anyway thanks in advance
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Originally Posted by ns2583 Solve the following equations. $\displaystyle 3^{x2-5}-9^{x-1}=0$ there is a bit of confucion .. i assume the equation is $\displaystyle 3^{x^2-5}-9^{x-1}=0$ $\displaystyle 3^{x^2-5}-3^{2x-2}=0$ $\displaystyle 3^{x^2-5}=3^{2x-2}$ $\displaystyle x^2-5=2x-2$ solve for x then. .
i think you need to look at your origonal post as i dont think it has been written right??
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