im terrible at factoring..please help?

(4x+1)^2 - (16x^2 + 4x)

i treated it as a difference of squares

so i did:

(4x+1 + 16x^2+4x)(4x+1 - 16x^2 - 4x)

which i further simplified to:

(16x^2 +8x+1)(-16x^2 +1)

and im pretty sure this isnt right.

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- Jan 13th 2008, 10:10 AMcheckmarksone factoring question
im terrible at factoring..please help?

(4x+1)^2 - (16x^2 + 4x)

i treated it as a difference of squares

so i did:

(4x+1 + 16x^2+4x)(4x+1 - 16x^2 - 4x)

which i further simplified to:

(16x^2 +8x+1)(-16x^2 +1)

and im pretty sure this isnt right. - Jan 13th 2008, 11:33 AMSoroban
Hello, checkmarks!

Quote:

Factor: .

i treated it as a difference of squares . . . . is**not**a square

Take out the common factor: .

And we have: .