Question 113753
X^2-3X-23=5
X^2-3X-23-5=0
X^2-3X-28=0
{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}
X=(3+-SQRT[(3^2-4*1*-28])/281
X=(3+-SQRT9+112)/2
X=(3+-SQRT121)/2
X=(3+-11)/2
X=(3+11)/2
X=14/2
X=7 ANSWER.
X=(3-11)/2
X=-8/2
X=-4 ANSWER.