First: multiply the 1st & 3rd term to get 60. find two numbers that give you 60 when multiplied & (-61) when added/subtracted. the numbers are (-1 & - 60). Rewrite the expression with the new middle terms.
x^2 - 1x - 60x + 60
Sec: with 4 terms - group "like" terms & factor both sets of parenthesis.
(x^2 - 1x) - (60x + 60)
x(x - 1) - 60(x - 1)
Third: make sure the inner terms are the same. combine the inner term (once) with the outer term.
(x - 1)(x- 60)
2007-05-12 17:09:29
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answer #1
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answered by ♪♥Annie♥♪ 6
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You have a positive third term and a negative middle term so we'll have a minus in each of the factors: (x - ?)(x - ?)
Now you want two numbers whose product is 60 and whose sum is 61. So 60 and 1 are the obvious choices:
(x - 60)(x - 1)
I don't know why some people insist on the quadratic forumula for problems like these.
Furthermore, I don't know why some are saying "x= 1 or 60". There's no equation here, folks. Just an quadratic expression!
2007-05-12 12:11:50
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answer #2
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answered by Anonymous
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I'm assuming x2 is x squared? Ok the lets do this x2 + 5x + 12x + 60 Use parenthesis to break down a little (x2 + 5x) + (12x + 60) Factor an x out of the first part x(x + 5) + (12x + 60) Factor 12 out of the second equation x(x + 5) + 12(x + 5) The numbers in parenthesis conveniently come out the same so we can rearrange it like so. (x + 12) ( x + 5) (If you don't believe me foil it out) Thus giving yout he zeroes of the function x= -12, -5 Cheers!
2016-04-01 08:32:33
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answer #3
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answered by Linda 4
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x^2 - 61x + 60
(-1) + (-60) = -61 and (-1) (-60) = 60
so use -1 and -60
(x - 60) (x - 1)
FOIL first, outer, inner, last
(x^2 - 1x - 60x + 60)
-1x + -60x = -61x
(x^2 -61x + 60)
so your answer is (x - 60) (x - 1)
I hope that makes sense to you
2007-05-12 12:28:45
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answer #4
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answered by smj 1
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(x-1)(x-60)
x=1 or x=60
2007-05-12 12:12:01
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answer #5
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answered by Dave aka Spider Monkey 7
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(x-60)(x-1) Good Luck!
2007-05-12 12:11:16
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answer #6
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answered by Anonymous
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(x-60)(x-1)
2007-05-12 17:05:09
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answer #7
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answered by dodgetruckguy75 7
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(x-60)(x-1)
2007-05-12 16:03:49
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answer #8
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answered by sam 3
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(x-60)(x-1)
2007-05-12 12:12:41
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answer #9
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answered by Anonymous
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(x-60)(x-1)
2007-05-12 12:09:51
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answer #10
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answered by F1reflyfan 4
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