Question

Solve.. 3x^3 - 23x^2 +7x +5

Answer 1

\[ (1+3 x) \left(5-8 x+x^2\right) \]

Answer 2

Hi Math, how do we solve this?

Answer 3

Good job posting the steps Fool

Answer 4

i mean what is x equal to?

Answer 5

i think i know the answer now :) thanks!

Answer 6

cherrydrops, in order to solve it, it has to be an equation. What you have posted is simply an expression.

Answer 7

are there 3 answers for x? omg the expression has an ' = 0 ' at the right. oops!

Answer 8

ya, you forgot to include the = 0

Answer 9

thank you

Answer 10

FFM, do you mind posting the steps?

Answer 11

I.. don't think he's there :)

Answer 12

Yeah, he magically disappeared without posting the steps

Answer 13

Heheh. yeah :(

Answer 14

Okay, I have it finally

Answer 15

Are you ready for the steps?

Answer 16

3x^3-23x^2+7x+5
3x^3-24x^2+x^2+15x-8x+5
3x^3-24x^2+15x+x^2-8x+5
3x(x^2-8x+5)+1(x^2-8x+5)
(x^2-8x+5)(3x+1)

Answer 17

Tedious, but it works

Answer 18

wow.. ;) thanks

Answer 19

now you can do this:

(x^2-8x+5)(3x+1) = 0

x^2-8x + 5 = 0
3x+1 = 0

and solve for x

Answer 20

Aahh i'm lost even before i got to the third step.. ;l how did 3x^3-23x^2+7x+5 become
3x^3-24x^2+x^2+15x-8x+5?

Answer 21

-24x + x^2 = -23x
15x-8x = 7x

Answer 22

right... ;