Posted by crystal on Sunday, January 11, 2009 at 9:24pm.
explain why (x + y)2= x2 + y2

college algebra  Damon, Sunday, January 11, 2009 at 9:37pm
If you are telling me that
(x+y)^2 = x^2 + y^2
That is not true
(x+y)^2 = x^2 + 2 x y + y^2
as you can see by multiplying
(x+y)(x+y) = x(x+y) + y(x+y) =x^2 + xy + xy + y^2

college algebra  Damon, Sunday, January 11, 2009 at 9:39pm
Now if you mean
2 (x + y) = 2 x + 2 y
that is simply the distributive property of multipication.

college algebra  john, Saturday, October 4, 2014 at 9:16pm
solc for v
[\sqrt;[6v2]]=[\sqrt;[9v8]]
Answer This Question
Related Questions
 statistics  At a small college it is known from previous years that 35% of all ...
 College Algebra  Can some please help me and explain this problem to me! Or if ...
 College Algebra  Use the definition of the logarithmic function to find x. (a) ...
 college algebra  Explain how to identify intervals on which a function ...
 college level algebra  I need to explain why subtracting a negative is like ...
 economic  College enrollments increased at the same time that average tuition ...
 college algebra  I you are given two real numbers, explain how to determine ...
 College Algebra  Solve 2x(squared)3x2=0 using the quadratic formula. Can ...
 college algebra  The graph of a power function is f(x)=kx^p, where k and p are...
 College Algebra  Solve the following equation in the complex number system x^4+...
More Related Questions