Question

(3√6-2√3) (8√6+4√3) I really don't remember how to do this but would like to be shown how. Can someone help?

Answer 1

let x = √6 and y = √3

now replace all copies of √6 with x and all copies of √3 with y to go from

(3√6-2√3) (8√6+4√3)

to

(3x-2y) (8x+4y)

Answer 2

expand out (3x-2y) (8x+4y) and tell me what you get

Answer 3

\[(3\sqrt{6}-2\sqrt{3})(8\sqrt{6}+4\sqrt{3})\]

Answer 4

\[3\sqrt{6}8\sqrt{6} -2\sqrt{3}8\sqrt{6}+3\sqrt{6}4\sqrt{3}-2\sqrt{3}4\sqrt{3}\]

Answer 5

is it ok till now amanda?