6 3

x + 16X + 64 =

3 3 2 2

This formula: x + a = (X+a)(x - ax + a )

I have tried this problem A MILLION times! I am So frustrated right now...UGH PLEASE HELP

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- Jan 20th 2011, 02:10 PMSapphire19Factor the polynomial
6 3

x + 16X + 64 =

3 3 2 2

This formula: x + a = (X+a)(x - ax + a )

I have tried this problem A MILLION times! I am So frustrated right now...UGH PLEASE HELP - Jan 20th 2011, 02:11 PMSapphire19
oops the problem is

x^6 +16x^3_64 and the formula is X^3+a^3= (x^2-ax + a^2) - Jan 20th 2011, 02:26 PMArchie Meade
- Jan 20th 2011, 02:34 PMSapphire19
That's not the right answer. This is regarding homework on mymathlab. If you write the wrong answer it tells you right away if it is wrong. The answer should look exactly like (except with different numbers)

(x+3)^2 (x^2-3x+9)^2

It says "notice that the given polynomial is a perfect square and can be factored by (x+a)^2.

For example, x^6+54x^3+729= (x^3+27)^2. "Now notice that this answer is the sum of 2 cubes. Now you use the formula that I previously posted to get the answer.

Even with this help that mymathlab gives me I still can't manage to complete this question. After literally over 45 minutes of trying I am giving up because i have A LOT of math homework to do and simply cannot spend 45 minutes on one question! - Jan 20th 2011, 02:41 PMe^(i*pi)
Archie Meade's factored form is the sum of two cubes

- Jan 20th 2011, 06:23 PMArchie Meade
- Jan 20th 2011, 07:07 PMmirajshahRelated question
Hi MHFers! I've got what's supposed to be a relatively easy problem here... can anyone solve?

Thanks! - Jan 21st 2011, 03:17 AMArchie Meade