Question

Equation in the response

Answer 1

\[(2+3\sqrt{10})(4-5\sqrt{5})\]

Answer 2

Foil it out.

Answer 3

how do i dow the sqrt 10 and sqrt 5 with foil?

Answer 4

Multiply them.

Answer 5

\[3\sqrt{10} \times -5\sqrt{5} = (3 \times -5)(\sqrt{10}\times\sqrt{5})\]

Answer 6

\[=-15 \sqrt{50} = -15(5\sqrt{2}) = -75\sqrt{2}\]

Answer 7

Then just add that along with your other terms.

Answer 8

so its \[-75\sqrt{2}\]

Answer 9

Well, that's the result of \[3\sqrt{10} \times -5\sqrt{5}\]

Answer 10

You still need to foil the rest of your terms.

Answer 11

foiled i got \[8\sqrt{100}\]

Answer 12

You have a problem whose solution ain't gonna be pretty!

Answer 13

wait what is the answer?

Answer 14

Well you got one of the terms, just continue your multiplication, next multiply the \[-5\sqrt{5}\times 2\]

Answer 15

Your answer will have 4 terms, one is the\[-75\sqrt{2}\]which polpak and you worked out, now work the one above and you will be half way there!

Answer 16

A loss is a gain without effort.