[tex]b^2+6b=0\\
b(b+6)=0\\
b=0 \vee b=-6\\\\
5x^2-5x=0\\
5x(x-1)=0\\
x=0 \vee x=1\\\\
-10x+35x=0\\
25x=0\\
x=0\\\\
2x+15x=0\\
17x=0\\
x=0\\\\
18x^2+6x=0\\
6x(3x+1)=0\\
x=0 \vee x=-\frac{1}{3}\\\\
-32x^2-24x=0\\
-8x(4x+3)=0\\
x=0 \vee x=-\frac{3}{4}[/tex]
