Question

How do you simplify -3 (rad24) +3 (rad6)-3 (rad18)?

Answer 1

so it is -3 * 24 radians + 3 * 6 radians - 3 * 18 radians?

Answer 2

well look at it this was

\[\sqrt{24} = \sqrt{4 \times 6} = \sqrt{4} \times \sqrt{6} = 2\sqrt{6}\]

try to re-write each radical in terms of factors.... and 1 factor needs to me a square number...

so using the example above

\[-3\sqrt{24} = -3 \times 2 \sqrt{6} = -6\sqrt{6}\]

leave the 2nd term alone

and the last radical

18 = 9 x 2