Question

What is the exact value of the expression:

Answer 1

\[7\sqrt{8} + 2\sqrt{12} - 3\sqrt{2}\]

Answer 2

@FutureMathProfessor

Answer 3

Break down the 8 and the 12 inside the square roots :)

Answer 4

make them 2?

Answer 5

@FutureMathProfessor

Answer 6

\[7\sqrt{8} + 2\sqrt{12} - 3\sqrt{2}\]
\[=7\sqrt{4\times 2}+2\sqrt{4\times 3}-3\sqrt{2}\]
\[=7\sqrt4\sqrt2+\sqrt4\sqrt3-3\sqrt2\]
\[=7\times 2\sqrt2+2\times 2\sqrt3-3\sqrt2\] is a start
then clean it up some with arithmetic and combining like terms

Answer 7

\[2\sqrt{4}\sqrt{3}\] is it supposed to be that for the second one? @satellite73