Sunday

December 4, 2016
Posted by **Joe** on Saturday, September 29, 2012 at 8:42pm.

- College algebra -
**Reiny**, Saturday, September 29, 2012 at 8:51pmNothing to solve, since you don't have an equation.

If you want to expand your expression, then

(7x + 5y)^2

= (7x+5y)(7x+5y)

= 49x^2 + 70xy + 25y^2