Two sets of equatic expressions are shown below in various forms:

line 1: x^2 − x − 6 (x + 2)(x − 3) (x + 0.5)^2 − 6.25
line 2: x^2 − x − 2 (x + 1)(x − 2) (x − 0.5)^2 − 2.25

which line contains three equivalent expressions?

a. line 1 only
b. line 2 only
c. both line 1 and line 2
d. neither line 1 nor line 2