Factor the following trinomial completely: x4 - 14x3 + 49x2
A. x2(x - 7)2
B. x2(x - 7)(x 7)
C. x4(x - 7)2
D. (x2 - 7)2

Question

Asked 6/11/2013 6:02:26 PM

Updated 7/7/2014 5:31:20 PM

1 Answer/Comment

This answer has been confirmed as correct and helpful.

Edited by andrewpallarca [7/7/2014 5:28:28 PM], Confirmed by andrewpallarca [7/7/2014 5:28:31 PM]

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Question

Asked 6/11/2013 6:02:26 PM

Updated 7/7/2014 5:31:20 PM

1 Answer/Comment

This answer has been confirmed as correct and helpful.

Edited by andrewpallarca [7/7/2014 5:28:28 PM], Confirmed by andrewpallarca [7/7/2014 5:28:31 PM]

Rating

3

(x - 3)^2 = 25;

(x - 3)(x - 3) = 25;

x^2 - 6x + 9 = 25;

x^2 - 6x + 9 - 25 = 0;

x^2 - 6x - 16 = 0;

(x + 2)(x - 8) = 0;

(x + 2) = 0 or (x - 8) = 0;

x = -2 or x = 8

(x - 3)(x - 3) = 25;

x^2 - 6x + 9 = 25;

x^2 - 6x + 9 - 25 = 0;

x^2 - 6x - 16 = 0;

(x + 2)(x - 8) = 0;

(x + 2) = 0 or (x - 8) = 0;

x = -2 or x = 8

Added 7/7/2014 5:31:20 PM

This answer has been confirmed as correct and helpful.

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