Answer
The solutions are -7 and -4 and 0.
Work Step by Step
2x(x+7)(x+4)=0
x=0 or x+7=0 or x+4=0
x=0 or x=-7 or x=-4
The solutions are -7 and -4 and 0.
Check
Let x=-7
2x(x+7)(x+4)=0
2(-7)(-7+7)(-7+4)=0
-14*0*(-3)=0
0=0
Let x=-4
2x(x+7)(x+4)=0
2(-4)(-4+7)(-4+4)=0
-8*3*0=0
0=0
Let x=0
2x(x+7)(x+4)=0
2(0)(0+7)(0+4)=0
0=0
