The left side can be written as a square. We can take the square root, then subtract 1.
... (x +1)² = 17
... x +1 = ±√17
... x = -1 ±√17
(75/4) / (5/4) =
75/4 * 4/5 =
300/20 =
15 books
Tom sold 22 tickets and Steve sold 57 tickets here is the method
2.25*x=10
Which x is the number of books purchased
Solve for x
X=10÷2.25
X=4.44
170.5 is the answer from the TI-84