can you help me with this factoring question?

[danj]

(x-1)(x+2)^2 -(x-1)^2(x+2)

 

[Deleted member 4993]

(x-1)(x+2)^2 -(x-1)^2(x+2)

What is the EXACT question?

What are your thoughts?

Please share your work with us ...even if you know it is wrong

If you are stuck at the beginning tell us and we'll start with the definitions.

You need to read the rules of this forum. Please read the post titled "Read before Posting" at the following URL:

http://www.freemathhelp.com/forum/th...Before-Posting

 

[danj]

the exact question says "factor the expression completely".
I am a non-traditional student studying algeba and trigonometry on my own.

I am also stuck with the next question

(x+1)^3x-2(x+1)^2x^2+x^3(x+1)

I tried grouping like terms but I can't even get started. Please let me know if I am still not following the rules.

 

[danj]

I tried. Having trouble.

a(b^2)-b(a^2)
ab^2-a^2(b)
(a)(b)(b)-(a)(a)(b)
(b)(-a^2+a+b)
??

 

[Deleted member 4993]

I tried. Having trouble.

a(b^2)-b(a^2)
ab^2-a^2(b)
(a)(b)(b)-(a)(a)(b)
(b)(-a^2+a+b)
??

This is incorrect.

Please study and work the example problems in:

http://www.purplemath.com/modules/simpfact.htm

then try the above factorization again.

 

[danj]

a(b^2) -b(a^2)
ab(b-a)

 

[danj]

thanks for the help so far

 

[danj]

still having trouble with the questions I posted.

 

[stapel]

(x-1)(x+2)^2 -(x-1)^2(x+2)

Can you factorize this: a(b^2) - b(a^2) ?

a(b^2) -b(a^2)
ab(b-a)

Okay, great! Now, let a = x - 1 and let b = x + 2. Apply the exact same method and the exact same steps. What do you get?

 

[Ishuda]

can you help me with this factoring question?

(x-1)(x+2)^2 -(x-1)^2(x+2)
....
a(b^2) -b(a^2)
ab(b-a)

now let
a = x-1
b = x+2

 

[danj]

(x-1) (x+2)[(x+2)-(x-1)]

? however this is not the answer in the textbook. it may have been factored more.

 

[Deleted member 4993]

(x-1) (x+2)[(x+2)-(x-1)]

? however this is not the answer in the textbook. it may have been factored more.

Right - but you need to simplify this part to get correct answer.

 

[danj]

thanks. would you mind helping me with that? I seem to be having trouble.

 

[danj]

I figured it out thanks!!