SOLUTION: I need help understanding the solution to this problem. (square root 2 +1) (square root 2 - 3) = (I used the FOIL method) (2 - 3) -3 square root 2 + square root 2 = -1 -2 square ro

Question 763293: I need help understanding the solution to this problem. (square root 2 +1) (square root 2 - 3) = (I used the FOIL method) (2 - 3) -3 square root 2 + square root 2 = -1 -2 square root 2. I do not understand where the -2 square root 2 came from. Please help.

Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!

or, simply like this:

RELATED QUESTIONS
I need help with this problem: The square root of (3/8) * (the square root of (3/4) +... (answered by edjones)

I need help figuring out (2+the square root of 3)(3-the square root of three)... (answered by nerdybill)

Can you help me solve this problem using the foil method? (4 square root of 5 - 2)(2... (answered by ankor@dixie-net.com)

I need some help I am not sure what method was used to solve this problem... (answered by funmath,stanbon)

Need help solving this problem: 2 square root 3 (square root 27 minus Square root... (answered by tutor_paul)

I need some help solving this: (The square root of 2-3)(The square root of... (answered by mukhopadhyay)

I need help with the following 2 questions... 1. Solve by extracing square roots:... (answered by Cintchr)

I need help simplifying this expression, 2 to the square root of 20 - 3 to the square... (answered by longjonsilver)