+48 Let's take a look at $(x + y)^2$ and $x^2 + y^2$ . While Beeker believes that these two expressions are equal for all real numbers $x$and $y,$Clod believes they are not! Let's get to the bottom of this!
a) Evaluate $(x + y)^2$ and $x^2 + y^2$ for x = 7 and y = 11
b) For which values of $x$ and $y$ does $(x + y)^2$ equal $x^2 + y^2?$ For which values of $x$ and$y$ does $(x + y)^2$ not equal $x^2 + y^2?$
