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Factor: x2 + 3x + 7x + 21
x^2 + 3x + 7x + 21 = x^2 + 10x + 21 = (x+7)(x+3)
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Asked 6/28/2012 7:52:16 PM
Updated 7/1/2012 2:42:47 AM
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x^2 + 3x + 7x + 21 = x^2 + 10x + 21 = (x+7)(x+3)
Added 7/1/2012 2:42:48 AM
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Weegy: 36x^2-7x-5=0, next we simplify further, 36x^2-7x=5, we can simplify further? Would you like me to do so? User: 36x^2-7x-5=0, next we simplify further, 36x^2-7x=5, we can simplify further? Would you like me to do so? Weegy: 36x^2-7x-5=0, next we simplify further, 36x^2-7x=5, we can simplify further? Would you like me to do so? (More)
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Education|No Subcategories|Expert Answered
Updated 9/4/2012 8:25:26 AM
1 Answer/Comment
x2 – 6x – 40 = 0

by factoring
(x - 10)(x + 4) = 0

x - 10 = 0
x = 10

x + 4 = 0
x = -4

So the value of x are 10 and -4.
Added 9/4/2012 8:25:26 AM
Solve for x: x2 – 64 = 0
Question
Education|No Subcategories|
Updated 7/1/2012 2:41:30 AM
1 Answer/Comment
x^2 – 64 = 0
x^2 = 64
x = sqrt (64)
x = 8 or -8
Added 7/1/2012 2:41:30 AM
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