Question

Is there a simpler way to do this?

Answer 1

\[(3+\sqrt{63})(1+\sqrt{7})\]

Answer 2

you need to remember this, then you will can do it easier

Answer 3

so what do I do with the big sqrt63 * sqrt 7?

Answer 4

63 = 21x3 = 3x7x3 than means (3+3 sqrt root 7)(1+sqrt root 7)