5x2 6a2y 12a4
25cx2 incase you can't read
Let me do the second one.Originally Posted by JohnAthan
It is a common error.
You have,
$\displaystyle (x+y)^2=(x+y)(x+y)$
Use FOIL and get,
$\displaystyle x^2+xy+xy+y^2$
COmbine,
$\displaystyle x^2+2xy+y^2$
JohnAthan,
Try learning LaTex it is wothwhile here is a LaTex tutorial.
Originally Posted by JohnAthan