How do you factor the expression $9x^2 + 6x +1$ ?

Question

11131 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-01-08T23:38:14

$9x^2+6x+1 = (3x+1)^2$

Does that $9, 6, 1$ pattern remind you of anything?

Maybe you know that $961 = 31^2$

If you do, then you might realise that:

$9x^2+6x+1 = (3x+1)^2$

This is a perfect square trinomial.

How do you factor the expression 9x^2 + 6x +19x^2 + 6x +1?