x*2+10x+20=0

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Solution for x*2+10x+20=0 equation:


x*2+10x+20=0

We simplify the equation to the form, which is simple to understand 
x*2+10x+20=0

We move all terms containing x to the left and all other terms to the right. 
+2x+10x=0-20

We simplify left and right side of the equation. 
+12x=-20

We divide both sides of the equation by 12 to get x. 
x=-1.6666666666667

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