Sunday

April 20, 2014

April 20, 2014

Posted by **crystal** on Sunday, January 11, 2009 at 9:24pm.

- college algebra -
**Damon**, Sunday, January 11, 2009 at 9:37pmIf 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 9:39pmNow if you mean

2 (x + y) = 2 x + 2 y

that is simply the distributive property of multipication.

**Related Questions**

MATH - use these facts to find the equation for the circle center (0,0), radius=...

Chemistry - X2 + Y2 <=> 2XY 0.50 mole each of X2 and Y2 are placed in a 1....

Algebra 2 - Which circle has the largest circumference? x2 + y2 = 8 (x – 3)2 + ...

math - I Wanted To Find The Square Root Of (1-2i) But I Didn't Know How To Solve...

microeconomics - Consider a competitive exchange economy with two agents(1&2)and...

Algebra - (-1,4) and (5,8) is (x1,y1) and (x2,y2). The slope is m=(y2-y1)/(x2-1...

Finding a Formula, help please ! - Does anyone know the formula to find any ...

calculus - Find an equation for the surface consisting of all points P(x, y, z) ...

Precalculus - he distance between 2 points (x1,Y1) and (x2,y2) is given by d = ...

Maths - Consider the curve defined by y4= y2- x2. At what ordered pair (x,y) is ...