Question

Simplify the radical. 7 square root of 72

Answer 1

theses are the possible answers
42 square root of 2
63 square root of 8
21 square root of 2
21 square root of 8
@PinkSapphire

Answer 2

\[7\sqrt{72} = 7\sqrt{9\cdot 8} =7\sqrt{3^2 \cdot 2^2 \cdot 2}\] For every pair of 2 numbers that are alike, 1 comes out of the square root andmultiplies to the number outside of it. \[=\boxed{7 \cdot 3 \cdot 2\sqrt{2} = ~?}\]

Answer 3

\[7\sqrt{72}\]Find the greatest factors of 72. \[7\sqrt{36\times2}\]36 is a perfect square so you cat take it out of the square root and it will become 6.
\[7\times 6\sqrt{2}\]Now multiply 6 and 7.\[42\sqrt{2}\]