Question

Radicals help!

Answer 1

What can I help you with?

Answer 2

(7+√2)(8-3√2)

Answer 3

54+root2

Answer 4

^incorrect.

Answer 5

I'm not necessarily looking for an answer, more of an explanation so I can understand the problem. Thank Arhin, anyway..

Answer 6

Thanks*

Answer 7

FOIL
First Outer Inner Last

\(\huge (a+b)(c+d) = ac+ad+bc+bd\)

Answer 8

sorry typing mistake

Answer 9

\[(7+√2)(8-3√2) = 54-21\sqrt{2}+ 8\sqrt{2} -(2)(3)=54-13\sqrt{2}-6 = 48-13\sqrt{2}\]Ok so what you do is you expand.

Answer 10

@elisichi is rather50 −13√2

Answer 11

^whoops. my bad. 7 *8= 56. Youre right

Answer 12

I think I understand now. Thank- you!

Answer 13

No problem!

Answer 14

@elisichi well done