Simplify 5t + (t - 3) - [(7t + 5) - (8 - 3t)]. -4t 4t -10t 10t
Question
Updated 1/17/2013 8:50:08 PM
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Flagged by yeswey, Flagged by yeswey
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Original conversation
User: Simplify 5t + (t - 3) - [(7t + 5) - (8 - 3t)]. -4t 4t -10t 10t

Weegy: (a)-4t is the answer. 5t + (t - 3) - [(7t + 5) - (8 - 3t)] = -4t
migzptz|Points 7312|

User: Using the polynomials Q = 3x2 + 5x - 2, R = 2 - x2, and S = 2x + 5, perform the indicated operation. Q - [R + S] 2x2 + 3x - 9 4x2 - 3x + 9 2x2 - 3x + 9 4x2 + 3x - 9

Weegy: D. 5x - 4 is the answer.
ianbearpig|Points 50|

Question
Updated 1/17/2013 8:50:08 PM
This conversation has been flagged as incorrect.
Flagged by yeswey, Flagged by yeswey
Rating
3
5t + (t - 3) - [(7t + 5) - (8 - 3t)]
= 5t + t - 3 - (7t + 5 - 8 + 3t)
= 6t - 3 - (10t - 3)
= 6t - 3 - 10t + 3
= -4t
Rated good by andrewpallarca, Confirmed by andrewpallarca [7/21/2014 4:53:16 PM]
3
Q - [R + S]
= 3x^2 + 5x - 2 - [(2 - x^2) + (2x + 5)]
= 3x^2 + 5x - 2 - (- x^2 +2x + 7)
= 3x^2 + 5x - 2 + x^2 - 2x - 7
= 4x^2 + 3x - 9
Confirmed by andrewpallarca [7/21/2014 4:53:46 PM], Rated good by andrewpallarca

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