1/2*x(x+5)=75

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Solution for 1/2*x(x+5)=75 equation: 



1/2x(x+5)=75

We move all terms to the left:

1/2x(x+5)-(75)=0



Domain of the equation: 2x(x+5)!=0

x∈R



We multiply all the terms by the denominator


-75*2x(x+5)+1=0

Wy multiply elements

-150x(x+1=0

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