Question

Two sets of quadratic equations are shown below in various forms.

Line 1: x2 − x − 6 (x + 2)(x − 3) (x + 0.5)2 − 6.25
Line 2: x2 − x − 2 (x + 1)(x − 2) (x − 0.5)2 − 2.25

Which line contains three equivalent expressions?

Line 1 only

Line 2 only

Both Line 1 and Line 2

Neither Line 1 nor Line 2

Answer 1

@AccessDenied

Answer 2

@poopsiedoodle

Answer 3

The factored form looks good. Sorry, I don't know what the form of the last column is. I don't wanna give you the wrong answer or the wrong path.

Answer 4

@31356

Answer 5

Hmm........

Answer 6

i think its only line one

Answer 7

A.
Refer to the attached calculations using the Mathematica program.
http://assets.openstudy.com/updates/attachments/52409c5ce4b090015417d3ad-robtobey-1379966644672-nitotheburito.pdf

Answer 8

what do you think @31356

Answer 9

Great observations by the way! :D

Answer 10

So it's Line 1 :D

Answer 11

thanks

Answer 12

Thx for the medal :D

Answer 13

Anytime :D

Answer 14

Line 2. Why?
(x + 1)(x - 2) is the equivalent factoring form of x^2 - x - 2
(x - 0.5)^2 - 2,25 is another equivalent form
(x - 0.5)^2 - 2.25 = x^2 - x + 0.25 - 2.25 = x^2 - x - 2

Answer 15

thu1935 is right, the correct answer is B. I just got it right.