3

2x(7 + 2x)

= 4x^2 + 17x

Added 4/3/2014 11:20:35 AM

This answer has been flagged as incorrect.

Flagged by

yeswey [4/3/2014 8:51:07 PM]

3

(5 + 3)^2

(5 + 3)(5 + 3)

25 + 15 + 15 + 9

= 25 + 30 + 9

= 55 + 9

= 64

Added 4/3/2014 11:21:26 AM

This answer has been confirmed as correct and helpful.

3

4 n^2 + m^2 n - 4 n^2 - mn^2

= m^2n - mn^2

Added 4/3/2014 11:22:07 AM

This answer has been confirmed as correct and helpful.

3

2x(7 + 2x) = 14x + 4x^2

Added 4/3/2014 8:51:35 PM

This answer has been confirmed as correct and helpful.

Confirmed by

jeifunk [4/3/2014 9:04:14 PM]

3

(5 + 3)^2 = 8^2 = 64

Added 4/3/2014 8:52:16 PM

This answer has been confirmed as correct and helpful.

Confirmed by

jeifunk [4/3/2014 9:04:16 PM]