Showing posts with label Contradictions. Show all posts
Showing posts with label Contradictions. Show all posts

Sunday, May 12, 2013

Solve: (1)/(x+7)+(2)/(x+3)=(-4)/(x^2+10x+21)

%0D%0A%281%29%2F%28x%2B7%29%2B%282%29%2F%28x%2B3%29=%28-4%29%2F%28x%5E2%2B10x%2B21%29%0D%0A 

 

 

%0D%0A%28%28x%2B3%29%2B2%28x%2B7%29%2B4%29%2F%28%28x%2B3%29%28x%2B7%29%29=0%0D%0A 


%0D%0A%282%28x%2B7%29%29%2F%28%28x%2B3%29%28x%2B7%29%29=0%0D%0A 

%0D%0A2%2F%28x%2B3%29=0%0D%0A 

but this equation can never be true 

so our original equation has no solution 

:)
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