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26x=-0.030(x-500)2+15.900
We move all terms to the left:
26x-(-0.030(x-500)2+15.900)=0
We calculate terms in parentheses: -(-0.030(x-500)2+15.900), so:We get rid of parentheses
-0.030(x-500)2+15.900
We add all the numbers together, and all the variables
-0.030(x-500)2+15.9
We multiply parentheses
-0.06x+30+15.9
We add all the numbers together, and all the variables
-0.06x+45.9
Back to the equation:
-(-0.06x+45.9)
26x+0.06x-45.9=0
We add all the numbers together, and all the variables
26.06x-45.9=0
We move all terms containing x to the left, all other terms to the right
26.06x=45.9
x=45.9/26.06
x=1+10.782608695652/14.163043478261
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