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Find the product. (x - 7)(y - 9)
Question
Asked 11/29/2014 1:43:13 PM
Updated 12/1/2014 10:19:52 PM
1 Answer/Comment
Flagged by janezeshun [12/1/2014 10:19:14 PM]
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Original conversation
User: Find the product. (x - 7)(y - 9)

User: The scientific notation 2.38 × 10-2 has what value

User: Find A B if A = {3, 6, 9, 12} and B = {2, 4, 6, 8, 10}.

Question
Asked 11/29/2014 1:43:13 PM
Updated 12/1/2014 10:19:52 PM
1 Answer/Comment
Flagged by janezeshun [12/1/2014 10:19:14 PM]
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8
(x - 7)(y - 9)
= x*y - 7*y - 9*x + (-7)*(-9)
= xy - 7y - 9x + 63
Added 12/1/2014 10:19:52 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [12/2/2014 3:16:38 AM], Rated good by jeifunk
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Question
Not Answered
Updated 12/1/2014 2:58:33 AM
3 Answers/Comments
x^3 + x^ 2 - 25x - 25
= x^2(x + 1) - 25(x + 1)
= (x + 1)(x^2 -25)
= (x + 1)(x + 5)(x - 5)
Added 12/1/2014 2:55:05 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [12/1/2014 3:01:04 AM]
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Added 12/1/2014 2:58:33 AM
This answer has been confirmed as correct and helpful.
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Find the vertex of the parabola whose equation is y = x^2 + 2x + 9 User: Describe the location of the point that has the following coordinates. negative abscissa, zero ordinate
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Question
Updated 11/29/2014 9:02:19 PM
2 Answers/Comments
The vertex of the parabola whose equation is y = x^2 + 2x + 9 is (-1 , 8) .

x = -2/2 = -1
when x = - 1
y = (-1)^2 + 2*(-1) + 9
y = 1 - 2 + 9
y = 8
Added 11/29/2014 8:55:26 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [11/30/2014 2:22:49 AM]
Harry will be 18 years old in 6 years .
Let Nick now is y , Harry now is x
y = 7x
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we ger x = 12
y = 84
x + 6 = 12 + 6 = 18
So Harry is 18 in 6 years
Added 11/29/2014 9:02:14 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [11/30/2014 2:23:13 AM]
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Updated 11/30/2014 7:43:37 PM
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Added 11/29/2014 6:31:47 PM
This answer has been confirmed as correct and helpful.
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Added 11/29/2014 6:33:22 PM
This answer has been confirmed as correct and helpful.
2(4x + 5) > 7x + 20
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Added 11/29/2014 6:35:23 PM
This answer has been confirmed as correct and helpful.
Confirmed by yumdrea [11/29/2014 6:39:27 PM]
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Added 11/29/2014 6:36:14 PM
This answer has been confirmed as correct and helpful.
Holy crap, im glad we have people on here like you to solve this lol
Added 11/30/2014 7:43:37 PM
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