If h>0, find all values of h such that h^2 + h = 72.
Re arrange to
h^2 + h -72 = 0 factor ( or use use Quaratic formula )
(x-8 )(x+9 ) = 0 can you take it from here ? <=====remember you are only looking for h>0 answers
+36915 
<=====remember you are only looking for h>0 answers
