Question 479701
standard form of the quadratic equation {{{ax^2+bx+c=0}}}
{{{x^2-10x-6=2x+3}}}
transfer{{{2x+3}}} into the left side, dont forget to change signs
{{{x^2-10x-6-2x-3=0}}}
{{{x^2-12x-9=0}}} the standard form of the equation