Monday, July 8, 2013

solve: 3(x^2)(e^x)+(x^3)(e^x)=0

%0D%0A3%28x%5E2%29%28e%5Ex%29%2B%28x%5E3%29%28e%5Ex%29=%283%2Bx%29%2Ax%5E2%2Ae%5Ex=0%0D%0A
Zero product property leads to: 
x%5E2=0ore%5Ex=0 or %283%2Bx%29=0 
so that 
x=0, x=1 or x= -3 

:)

No comments: