3(5-x)(x+1/2)=0

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Solution for 3(5-x)(x+1/2)=0 equation: 



3(5-x)(x+1/2)=0

We add all the numbers together, and all the variables

3(-1x+5)(+x+1/2)=0

We multiply parentheses ..

3(-1x^2-1x^2+5x+5*1/2)=0

We multiply all the terms by the denominator


3(-1x^2-1x^2+5x+5*1=0

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