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Q: (x + 7)(x - 3)
A: 1/x+8=x-3/12 Multiply both sides by (x+8) gives 1 = (x+8)(x-3)/12 (x+8)(x-3) = 12 x^2 + 5x -36 = 0 Factorising gives (x+9)(x-4)=0 x = -9 or 4
Original conversation
User: (x + 7)(x - 3)

Weegy: 1/x+8=x-3/12 Multiply both sides by (x+8) gives 1 = (x+8)(x-3)/12 (x+8)(x-3) = 12 x^2 + 5x -36 = 0 Factorising gives (x+9)(x-4)=0 x = -9 or 4
rugmaker|Points 1943|

User: (x+1)(x^2+5x-2)

Question
Updated 6/13/2014 1:41:50 AM
Edited by andrewpallarca [6/13/2014 1:39:33 AM]
Rating
3
(x + 7)(x - 3)

= x^2 - 3x + 7x - 21

= x^2 + 4x - 21
3
(x+1)(x^2+5x-2)

= x^3 + 5x^2 + x^2 - 2x + 5x - 2

= x^3 + 6x^2 + 3x - 2

Questions asked by the same visitor
6(y 7)
Weegy: Yes, what is your question? User: simplfy 6(y+7) Weegy: (1 /7)^2 = 1/49 User: simplfly 7x+4+3x-3 Weegy: 7x+4+3x-3 simplifies to 10X + 1 User: multiply (9x^2y^3)(7xy^2) Weegy: (9x^2y^4)^3 when simplified is 729x^6y^12 (More)
Question
Updated 4/25/2014 12:09:38 AM
6(y+7) = 6y + 42
Confirmed by jeifunk [4/25/2014 2:18:03 AM]
(9x^2y^3)(7xy^2) = 63x^3y^5
Confirmed by jeifunk [4/25/2014 2:18:13 AM]
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