Question 451111
First set the equation to zero;{{{10x^2+100x=0}}}, factor 10x out and get:

{{{10x(x+10)=0}}}. Use the fact that if ab=0 then a=0 or b=o to find the roots:

10x=0=> x=0 and x+10=0 => x=-10

Answer:The solution is x=0 and x=-10.

Check:1)10*0^2=-100*0 => 0=0; 2)10*10^2=-100*(-10)=> 1000=1000.