Question

help? square roots are so confusing.
3 sqrt 7 (1 - sqrt 7)

Answer 1

\[3\sqrt{7} (1-\sqrt{7})\]

Answer 2

\[3\sqrt{7}\times1+3\sqrt{7}\times (-\sqrt{7})\]

Answer 3

\[3\sqrt{7}\times (-\sqrt{7}) --->3(-1)(\sqrt{7)}(\sqrt{7)}=?\]

Answer 4

\[-3\sqrt{7}^2 --->(-3\times7)--->(-21)\]

Answer 5

\[3\sqrt{7}-21\]

Answer 6

do i finish that?

Answer 7

this is in the most simplified form