Question

open parentheses 7 plus square root of 2 close parentheses open parentheses 8 minus 3 square root of 2 close parentheses

50
50 minus 13 square root of 2
50 plus 28 square root of 2
62 minus13 square root of 2

Answer 1

well,is that it?
\[(7+\sqrt{2})(8 - 3\sqrt{2})\]

Answer 2

yess

Answer 3

well,then first...do u know how to do this?
(a+b)(c-d)
?

Answer 4

no

Answer 5

foil?

Answer 6

i'll help u:
(a+b)(c-d) = a(c-d) + b(c-d)

--> (a+b)(c-d) =ac - ad + bc - bd

Answer 7

and now we have \((7+\sqrt{2})(8 - 3\sqrt{2})\)

Answer 8

i dont understand. do you multiply whats in the square roots or add them?

Answer 9

distribute each term

Answer 10

buzz??