Original Statement: If x = 3, then x^2 = 9 (true)
Converse: If x^2 = 9, then x = 3 (false; this is half the story and x = -3 must be included)
Since the converse isn't completely true, we can't combine the two statements to get a biconditional.
9,6^2+18,8^2=X^2
92,16+353,44=X^2
X^2=445,6
X=21
R2+15r+36=0 the answer is r=6
