12=1/2x^2+x-13.5

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Solution for 12=1/2x^2+x-13.5 equation: 



12=1/2x^2+x-13.5

We move all terms to the left:

12-(1/2x^2+x-13.5)=0



Domain of the equation: 2x^2+x-13.5)!=0

x∈R



We get rid of parentheses

-1/2x^2-x+13.5+12=0

We multiply all the terms by the denominator


-x*2x^2+(13.5)*2x^2+12*2x^2-1=0

Wy multiply elements

-2x^3+24x^2+(13.5)*2x^2-1=0

We do not support expression: x^3

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