10x^2+5x=0 5x(2x+1)=0 5x=0 x=0/ 2x+1=0 2x=-1 x= -1/2 x^2-10x=0 x(x-10)=0 x=0; x-10=0 x=10
x^2-10x=0
А)5x(2x+1)=0 1)x=0 2) 2x=1 x=1/2 b) x(x-10)=0 1)x=0 2)x=10 c) 2x^2=32 x^2=16 x=+-4