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1/t^2-18t+9=0
Domain of the equation: t^2!=0We add all the numbers together, and all the variables
t^2!=0/
t^2!=√0
t!=0
t∈R
-18t+1/t^2+9=0
We multiply all the terms by the denominator
-18t*t^2+9*t^2+1=0
We add all the numbers together, and all the variables
9t^2-18t*t^2+1=0
Wy multiply elements
9t^2-18t^3+1=0
We do not support etpression: t^3
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