how do you factor x^4-13^3+36??

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2007-02-20 17:47:39 · 4 answers · asked by Winnie 3 in Science & Mathematics ➔ Mathematics

yes, actually i did type it wrong, its x^4-13x^3+36, sorry.

2007-02-20 18:04:42 · update #1

4*9=36
4+9=13

x^4-13^3+36
=(x^2-4)(x^2-9)
=(x-2)(x+2)(x-3)(x+3)

remember
a^2-b^2=(a-b)(a+b)

2007-02-20 17:53:33 · answer #1 · answered by iyiogrenci 6 · 0⤊ 1⤋

Is this written correctly? If so, then use your calculator and cube 13 and add it to 36 and see if you can factor from there.

2007-02-21 01:52:42 · answer #2 · answered by lizzie 3 · 0⤊ 1⤋

x^4 - 13^3 + 36 =
x^4 - 2233 =
(x^2 + 47.255)(x2 - 47.255) =
(x + j6.8742)(x - j6.8742)(x + 6.8742)(x - 6.8742)

2007-02-21 02:11:36 · answer #3 · answered by Helmut 7 · 0⤊ 0⤋

check weater u typed it correctly

2007-02-21 01:54:01 · answer #4 · answered by babitesfaye 1 · 0⤊ 1⤋