2007-09-10 04:22:26 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
use the long division method.
you will get 3x+2+[7/(x+1)]
2007-09-10 04:36:20 · answer #1 · answered by Anonymous · 0⤊ 0⤋
I think there is something wrong with your problem.
I assume this is meant to be equal to zero.
3x^2 + 5x + 9/x + 1 = 0
(multiply both sides by x)
3x^3 + 5x^2 + x + 9 = 0
Using the rule of signs, this equation has only one root (not counting imaginary numbers). You can't factor by grouping and I can't find an answer using Ps/Qs, so it has to be an irrational root.
Unless you're taking an advanced math class, I strongly suspect you have made a typo in your problem. The only way I can make this equation solvable is if 3x^2+5x+9 is grouped in parenthesis, but then I need to know if the denominator is x or x+1.
2007-09-10 04:50:35 · answer #2 · answered by davypi 3 · 0⤊ 0⤋
15. The polynomial equation is already thoroughly factored for this reason, equated to 0 having right here suggestions: x = -3, -2, a million. sixteen. x^3 - 10x^2 + 16x = 0 => x(x^2 - 10x + sixteen) = x(x - 2)(x - 8) for this reason yielding the suggestions of x = 0, 2, 8. 17. (x + 2)(x^2 + 3x - 40) = (x + 2)(x + 8)(x - 5) = 0. Having been thoroughly factored, the answer to this entire polynomial equation is at x = -8, -2, 5 18. x^3 + 3x^2 - 54x = x(x^2 + 3x - fifty 4) = x(x + 9)(x - 6) = 0. for this reason, the suggestions for this cubic polynomial equation is at x = -9, 0, 6. J.C
2016-12-16 16:27:31 · answer #3 · answered by ? 4 · 0⤊ 0⤋
we will use the synthetic division. by doing this we first get the divisor by equating x to 0.
x + 1 = 0
x = -1
so our divisor is negative -1. then we get the dividend by simply disregarding the variables of it.
3 5 9
3 5 9 l-1
_______________________
bring down the first number then multiply by our divisor. write the answer below the next number. then add/subtract. repeat the process up to the last number.
3 5 9 l-1
_______-3_____-2_________
3 2 7
then we write it with the variables. note that we will subtract 1 from the exponent.
3x + 2 + (7/x+1)
or
Q(X) = 3x + 2
R(x) = 7
2007-09-10 04:59:10 · answer #4 · answered by Anonymous · 0⤊ 0⤋
3x^2+5x+9/x+1
Sorry, this is not an equation; it doesn't equal anything.
.
2007-09-10 04:27:01 · answer #5 · answered by Robert L 7 · 1⤊ 0⤋
use the quadratic formula. yeah top does not factor... and it's not an equation, think he just wants it simplified.
2007-09-10 04:28:47 · answer #6 · answered by Anonymous · 0⤊ 0⤋
not an equation
2007-09-10 04:38:08 · answer #7 · answered by dwinbaycity 5 · 1⤊ 0⤋