Question

HELP RATIONALIZE

Answer 1

\[(7+\sqrt{2})(8-3\sqrt{2})\]

Answer 2

Use FOIL.

Answer 3

Whats that

Answer 4

\[56-13\sqrt{2}-6\]

Answer 5

First Outside Inside Last

Say you have (x+y)(x+y). You take the first two and multiply them together, then go to the outside and multiply those together and add, and then multiply the last two.

So the foil of (x+y)(x+y)=x^2+xy+xy+y^2=x^2+2xy+y^2

Answer 6

you sure cuss it doesnt show that on my answe rsheet

Answer 7

Multiply the FIRST terms of the two expressions, then the OUTER terms of the two expressions, then the INNER terms of the two expressions, and finally the LAST terms of the two expressions. Then add all of these terms together.

Answer 8

Maybe not. What does it show?

Answer 9

Did you simplify it?