9x² - 49
Question
Updated 12/23/2014 1:50:33 AM
This conversation has been flagged as incorrect.
Flagged by andrewpallarca [12/23/2014 1:50:33 AM]
Original conversation
User: 9x² - 49

Weegy: (9x + 4)(9x - 4)

= 81x^2 - 36x + 36x - 16;

= 81x^2 - 16

Question
Updated 12/23/2014 1:50:33 AM
This conversation has been flagged as incorrect.
Flagged by andrewpallarca [12/23/2014 1:50:33 AM]
Rating
3
9x² - 49 = (3x - 7)(3x + 7)

Questions asked by the same visitor
Solve: -4n < -16
Question
Updated 12/23/2014 12:20:13 AM
-4n < -16;
n > 16/4;
n > 4
Confirmed by yumdrea [12/23/2014 12:52:33 PM]
Multiply and wwrite scientific notation for the result: (8.25 10 ^-3)(3.40 10^4)
Question
Updated 12/22/2014 7:55:59 PM
(8.25 x 10 ^-3)(3.40 x 10^4)
= 28.05 x 10^1
= 2.805 x 10^2
Confirmed by yumdrea [12/22/2014 8:09:56 PM]
Factor completely: 9x² - 49
Weegy: (9x + 4)(9x - 4) = 81x^2 - 36x + 36x - 16; = 81x^2 - 16 (More)
Question
Updated 12/23/2014 1:09:13 AM
9x² - 49 = (3x - 7)(3x + 7)
Confirmed by andrewpallarca [12/23/2014 1:14:53 AM]
Multiply: (x² - x + 7)(x + 5)
Question
Updated 12/23/2014 1:18:09 AM
(x² - x + 7)(x + 5) = x^3 + 5x^2 - x^2 - 5x + 7x + 35 = x^3 + 4x^2 + 2x + 35
Confirmed by andrewpallarca [12/23/2014 1:19:50 AM]
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