Question
Updated 5/18/2014 11:10:52 PM
This conversation has been flagged as incorrect.
Flagged by yeswey [5/18/2014 11:06:36 PM]
Original conversation
User: Factor the polynomial. Multiply the factors to check your answer. 5x(x+7)-(7+x)

Weegy: x=3 (which would make it 15 + 0 = 15)
selymi|Points 14936|

Question
Updated 5/18/2014 11:10:52 PM
This conversation has been flagged as incorrect.
Flagged by yeswey [5/18/2014 11:06:36 PM]
Rating
3
5x(x + 7) - (7 + x)
= 5x^2 + 35x - 7 - x
= 5x^2 + 34x - 7
= (x + 7)(5x - 1)

To check the answer by multiplication:
(x + 7)(5x - 1)
= 5x^2 - x + 35x - 7
= 5x^2 + 34x - 7
= 5x^2 + 35x - x - 7
= 5x(x + 7) - (x + 7)
Confirmed by jeifunk [5/19/2014 3:24:47 AM]

Questions asked by the same visitor
What pattern is represented by the polynomial 4x^2+12x+9? A. difference of two squares B. general trinomial C. perfect square trinomial D. prime trinomial
Weegy: The polynomial 4x^2+12x+9 represents perfect square trinomial. 4x^2+12x+9 = (2x + 3)^2 (More)
Question
Updated 5/19/2014 12:27:26 AM
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