Question 685161
{{{x^2+45x=-200}}}

{{{x^2+45x+200=0}}}..... using the quadratic formula will be


{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}


{{{x = (-45 +- sqrt(45^2-4*1*200 ))/(2*1) }}}


{{{x = (-45 +- sqrt(2025-800 ))/2 }}}


{{{x = (-45 +- sqrt(1225 ))/2 }}}


{{{x = (-45 +- 35)/2 }}}


solutions:


{{{x = (-45 +35)/2 }}}


{{{x = -10/2 }}}


{{{x = -5 }}}

or

{{{x = (-45 -35)/2 }}}


{{{x = 80/2 }}}


{{{x = 40 }}}


{{{ graph(600, 600, -50, 50, -300, 300, x^2+45x+200) }}}