Wednesday, May 21, 2014

Determine the real solutions if any of the given equation: sqrt(2x-7)=5-x

sqrt%282x-7%29%5E2=%285-x%29%5E2
2x-7=25-10x%2Bx%5E2
x%5E2-12x%2B32=0
%28x-4%29%28x-8%29=0

but if x=8 then 5-8=-3 ... impossible, so...
solution:
x=4

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