r*2+8r+13=0

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Solution for r*2+8r+13=0 equation:


r*2+8r+13=0

We simplify the equation to the form, which is simple to understand 
r*2+8r+13=0

We move all terms containing r to the left and all other terms to the right. 
+2r+8r=0-13

We simplify left and right side of the equation. 
+10r=-13

We divide both sides of the equation by 10 to get r. 
r=-1.3

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