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: