Question 312612
x, x+2, x+4
{{{(x+2)(x+4)=20+10x}}}
{{{(x^2+6x+8)=20+10x}}}
{{{(x^2-4x-12)=0}}}
{{{(x-6)(x+2)=0}}}
{{{x=6}}},{{{cross(-2)}}} cant be negative
6,8,10 are the 3 numbers

checking
{{{(x+2)(x+4)=20+10x}}}
{{{(8)(10)=20+10(6)}}}
{{{(80)=20+(60)}}}
{{{80=80}}}