Question 474614
{{{(x-5)(x-(-3))=0}}}
{{{(x-5)(x+3)=0}}}
{{{x^2+3x-5x-15=0}}}
The equation {{{x^2-2x-15=0}}}
another quadratic equation with the same roots possible if multiply this equation by any number
{{{2x^2-4x-30=0}}}