# How do you solve #y = x^2 + 2x + 1#?

##### 1 Answer

Jun 29, 2015

To 'solve'

'How do you calculate

hence

If

#### Explanation:

Here's a little 'trick' to help spot some of these perfect square quadratics...

Suppose you have a quadratic:

The coefficients of the

Does the pattern

and we find:

where

Similarly: