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(-x)^2-10(-x)-3=0
We add all the numbers together, and all the variables
(-1x)^2-10(-1x)-3=0
We multiply parentheses
(-1x)^2+10x-3=0
We add all the numbers together, and all the variables
10x+(-1x)^2-3=0
We move all terms containing x to the left, all other terms to the right
10x+(-1x)^2=3
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