find the product of this(x-1) (x 2)
Question
Updated 9/10/2014 1:20:25 AM
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Flagged by andrewpallarca [9/10/2014 1:20:25 AM]
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User: find the product of this(x-1) (x 2)

thederby|Points 859|

User: (x-1)(x+2)

thederby|Points 859|

User: (9-5x)^2

Weegy: check this answer with the foil method. first x * x= x^2 outer x * 2= 2x inner -1 * x= -1x or -x last -1 * 2= -2 answer is x^2 -x-2 = (x-1)(x+2) Source(s): I just learned the foil method in class.

Question
Updated 9/10/2014 1:20:25 AM
This conversation has been flagged as incorrect.
Flagged by andrewpallarca [9/10/2014 1:20:25 AM]
Rating
8
(x - 1)(x + 2)
= x^2 + 2x - x - 2
= x^2 + x - 2
8
(9 - 5x)^2
= (-5x + 9)(-5x + 9)
= 25x^2 - 45x - 45x + 81
= 25x^2 - 90x + 81
5
(x-1)(x+2) using the foil method, we get x^2+2x-x-2
=x^2-x-2

And for the (9-5x)^2, the expanded form would be 25x^2-90x+81.
This answer has been flagged as incorrect.
Flagged by andrewpallarca [9/10/2014 1:19:08 AM]

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