Question 637293
I just solved a problem very much like this one. Its solution should help you figure out this one. Just use FOIL or the {{{(a+b)^2=a^2+2ab+b^2}}} pattern. (This will make sense when you see the other solution.) <br>
<A <HREF="http://www.algebra.com/algebra/homework/Square-cubic-other-roots/Square-cubic-other-roots.faq.question.637292.html">Click here</A> to see the other solution.