Question 38530
boundary points? you mean find the solution?


If so... then we need to physically know where the 2 equations cross ie where are they EQUAL... so ask them...


where is {{{ x^2+2x+1 = 4 }}}?
{{{ x^2+2x-3 = 0 }}}
(x+3)(x-1) = 0
so x+3=0 or x-1=0
so x=-3 or x=1 are the 2 answers/solutions/roots.


jon