the answer is ;
factor ' -2 '
-2( 241x^2) + 6072)
that's all
good luck.
2006-09-07 11:05:25
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answer #1
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answered by sweetie 5
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First pull out the common value of 2:
2 (x + a)(x + b) = 2(x² - 241x -6072)
So you want to end up with a result like:
2(x + a)(x + b)
Expanding this out:
2(x² + (a+b)x + ab)
You can use trial and error to figure out the values or you can use the quadratic formula.
Using trial and error, you want:
ab = -6072
a + b = -241
Prime factors of 6072 are:
± (2 x 2 x 2 x 3 x 11 x 23)
Thus the integer factors (ab) of -6072 are:
-6072, 1
-3036, 2
-2024, 3
-1518, 4
-1012, 6
-759, 8
-552, 11
-506, 12
-276, 22
-264, 23 <---
-184, 33
-132, 46
-92, 66
-88, 69
-69, 88
-66, 92
etc.
Try the sum of each of these and you'll find the right answer is the one I've highlighted:
-264 x 23 = -6072
-264 + 23 = -241
So the final factorization is:
2 (x - 264) (x + 23) = 0
Thus the solutions are:
x = 264 or x = -23
If you use the quadratic formula you'll get:
x = (241 ± sqrt(82369) ] / 2
x = (241 ± 287) / 2
x = 528 / 2 or -46 / 2
x = 264 or -23
So the final factorization would still be:
2 (x - 264) (x + 23) = 0
2006-09-07 16:16:07
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answer #2
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answered by Puzzling 7
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2 x (x + a ) (x + b)
2006-09-07 16:18:50
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answer #3
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answered by ryan 2
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2(x^2-241x-6072)=2(x-264)(x+23)
2006-09-07 16:23:52
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answer #4
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answered by Amar Soni 7
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2(x^2-241x-6072)=2(x-264)(x+23)
2006-09-07 16:17:25
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answer #5
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answered by Hex 2
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(2x-528)(x+23)=
2(x-264)(x+23)
2006-09-07 16:37:10
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answer #6
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answered by albert 5
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2x^2-482x-12144
=2(x^2-241x-6072)
=2(x-264)(x+23)
2006-09-07 16:19:34
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answer #7
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answered by raj 7
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