Tuesday, April 30, 2013

Solve by the square root property 25(y+5)^2=81

25%28y%2B5%29%5E2=81 

%2825%28y%2B5%29%5E2%29%2F25=81%2F25 

sqrt%28%28y%2B5%29%5E2%29=sqrt%2881%2F25%29 

abs%28y%2B5%29=9%2F5 

y%2B5=9%2F5 

or 


 
Solving the two equations we get 

y=-16/5 or y=-34/5
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