SOLUTION: I need help with the steps to solve this problem 3b cubed minus 5b squared plus 2b I really would like en explanation to the steps on how the answer can be obtained and what

Question 1054921: I need help with the steps to solve this problem
3b cubed minus 5b squared plus 2b
I really would like en explanation to the steps on how the answer can be obtained and what the answer is. I am stuck on question 11 on my homework and I'd like to understand the process
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
it sounds like you're trying to find the factors.
if that's the case, you could do it in the following manner.
start with 3b^3 -5b^2 + 2b = 0
replace b with x because it makes it easier to relate to the quadratic formula.
the equation becomes 3x^3 - 5x^2 + 2x = 0
factor out an x to get x * (3x^2 - 5x + 2) = 0
this equation is true if x = 0 and or if 3x^2 - 5x + 2 = 0.
factor of x = 0 yields the solution of x = 0.
factor of 3x^2 - 5x + 2 = 0 needs to be factored further using the quadratic formula.
when you use that formula, you get x = 1 or x = 2/3.
your possible solutions are x = 0, x = 1, or x = 2/3.
replace x with b to get b = 0 or b = 1 or b = 1/3.

if you graph the equation, it will look like this.
1/3 is the same as .6667 as shown in the graph.

$$$

RELATED QUESTIONS
Hi I need help with checking the answer to this question. Question : Simplify:... (answered by ewatrrr)

I need to multiply the fraction -3a^2b/35a^5 x 35a^5 / 9b^4= I have it broken down... (answered by stanbon)

I need to add the following polynomial: 5b^3-8b+2b^2 and 3b^2-7b^3+5b. Can someone please (answered by checkley75)

Simplify and ractionalize all denominators: 3b[SQRT(27a^5b)] + 2a[SQRT(3a^3b^3)] I... (answered by stanbon,Edwin McCravy)

Simplify (be sure to rationalize all denominators) 10. 3b[SQRT(27a^5b)] +... (answered by stanbon)

2b+11=15-6b.....can i get a detailed explanation on how to do this problem & others like... (answered by jim_thompson5910)

I'm using a book called No-Nonsense Algebra by Richard Fisher. I've run into a problem... (answered by MathLover1,math_helper)

Hi I don't understand nor know the steps to solving : 3b+2<5b-6<(greater than or equal... (answered by Elomeht)

Use the squared identities to simplify 2sin^2xsin^2x. I REALLY NEED HELP WITH THIS (answered by MathLover1)