6x cubed=5x-7
2006-09-26 02:58:29 · 10 answers · asked by alyssa g 1 in Science & Mathematics ➔ Mathematics
6*x^3 = 5*x - 7 is what is called a "depressed cubic" since it has no x^2 term.
Rearrange terms and transform the above equation to,
x^3 - 5/6*x = -7/6
so A = -5/6 and B = -7/6, and the solution is outlined here:
http://www.sosmath.com/algebra/factor/fac11/fac11.html
(If it weren't a "depressed" cubic, but a regular cubic, there is a way to get it into depressed cubic form.)
2006-09-26 04:47:57 · answer #1 · answered by Joe C 3 · 0⤊ 0⤋
6x =18
5x5=25 - 7=18
2006-09-26 10:06:43 · answer #2 · answered by nas88car300 7 · 0⤊ 1⤋
Till now, I only know about squared. Not cubed. Sorry ^2
2006-09-26 10:04:03 · answer #3 · answered by Bilal Hares 3 · 0⤊ 1⤋
6 * x^3 intersects the line 5 * x - 7 when x = -1.312
2006-09-26 10:26:47 · answer #4 · answered by Anonymous · 1⤊ 0⤋
2:
2006-09-26 10:06:56 · answer #5 · answered by screams without lungs 2 · 0⤊ 0⤋
You're better off taking your teacher out for a couple of drinks, and trying to strike up a deal. But, before you do that, are upir SURE you want to know the answer
2006-09-26 10:02:42 · answer #6 · answered by clear_skyzz 2 · 0⤊ 1⤋
35\6
2006-09-26 10:01:02 · answer #7 · answered by ghada.abassy 1 · 0⤊ 1⤋
DONT KNOW HOW TO DO IT ON COMPUTER OTHER WISE ITS EASY,
take 5x to left,...and so on
2006-09-26 10:02:05 · answer #8 · answered by alok n 2 · 0⤊ 0⤋
sorry, can't help.. that's astronomical
2006-09-26 10:00:29 · answer #9 · answered by Mr. Owl 3 · 0⤊ 1⤋
5.4
2006-09-26 10:01:00 · answer #10 · answered by jasminenlady07 2 · 0⤊ 1⤋