Math Is Fun Forum

mathxyz

Member

From: Brooklyn, NY

Registered: 2024-02-24

Posts: 1,053

Extra Factor Completely

This is a highlighted problem by Sullivan on page 58 (college algebra).

Number 127. It is the only highlighted problem in the list 123 to 134.

Do you see it on page 58? The number 127 is gold or yellow in color. Those are the only problems I will do in both textbooks.

Factor Completely.

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

GCF = (x + 3)(x - 2)^2

(x + 3)(x - 2)^2[2(x - 2) + 3(x + 3)]

(x + 3)(x - 2)^2(5 x + 5)

Answer: (x + 3)(x - 2)^2 • 5(x + 1)

By the way, this is the answer in the back of the book. I just wanted to show my work.

One more time:

1. I will post highlighted problems when I get stuck only.

2. I will select 1 or 2 interestingly challenging problems occasionally as extra practice for me.

3. I will not bombard the site with so many daily questions. I know that you and other members have a life outside of here.

4. Less questions leads to further discussions and thus more learning.

5. Please, download Precalculus by Sullivan Edition 10.

Last edited by mathxyz (2024-05-21 01:36:29)

Bob

Administrator

Registered: 2010-06-20

Posts: 10,627

Re: Extra Factor Completely

I've got the book.

Bob

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Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob

mathxyz

Member

From: Brooklyn, NY

Registered: 2024-02-24

Posts: 1,053

Re: Extra Factor Completely

I've got the book.

Bob

Very nice. You now have both textbooks. It is a lot easier this way.