Question 188098
Solve 2x ( x + 3 ) = x + 25 
:
{{{2x^2+6x=x+25}}}.....distributed left side
:
{{{2x^2+5x-25=0}}} collected like terms on left side
:
{{{(2x-5)(x+5)=0}}}...factored
:
2x-5=0 and x+5=0
:
2x=5--->x=5/2
:
x+5=0--->x=-5
:
x= 5/2, -5