Factoring and simplifying an expression

Hi, the problem is to factor and simplify the expression

I can factor the left side but the right leaves me stuck.

I tried multiplying both terms in the right and got

but I feel like I am going the wrong way and don't think it should be this complicated.

The answer in the back of the book is

I don't know where the final term came from.

Thank you.

Re: Factoring and simplifying an expression

Quote:

Originally Posted by

**Foxlion** Hi, the problem is to factor and simplify the expression

I can factor the left side but the right leaves me stuck.

I tried multiplying both terms in the right and got

but I feel like I am going the wrong way and don't think it should be this complicated.

The answer in the back of the book is

I don't know where the final term came from. Thank you.

Now just combine alike terms in the brackets.

:)

Re: Factoring and simplifying an expression

where does the 1 come from?

Re: Factoring and simplifying an expression

Quote:

Originally Posted by

**Foxlion** where does the 1 come from?

Re: Factoring and simplifying an expression

Hello, Foxlion!

. .

. .

If you can't follow that, you need more help than we can provide.

Re: Factoring and simplifying an expression

no I get that, but how does

become ?

Re: Factoring and simplifying an expression

yeah I see that, thank you.

Re: Factoring and simplifying an expression

Hello again, Foxlion!

Okay, you understand this: . .[1]

The given problem is a messier version of this equation.

. . They used instead of

. . and used instead of

Substitute those expression into [1].

Got it?

Re: Factoring and simplifying an expression