252 = 36·7
113 = 16·7
√252 - √7 + √112 = √36√7 - √7 + √16√7 = 6√7 - √7 + 4√7 = (6 - 1 + 4)√7 = 9√7
sqt(252)=15.8745078663875435
-
sqt(7)=2.6457513110645906
+
sqt(112)=10.5830052442583624
=
23.8117617995813153
