Michael J. answered 06/10/15
Tutor
5
(5)
Great at Simplifying Complex Concepts and Processes
When we simply radicals, we break up the radicals by their factors.
√(10d2) √(30d) =
√(300d3) =
√(100) * √(3) * √(d2) * √(d) =
10 * √(3) * d * √(d) =
10d√(3d)
-7√(7) - 9√(63) =
-7√(7) - 9√(9)√(7) =
-7√(7) - 9(3)√(7) =
-7√(7) - 27√(7)
We are able to combine like radicals.
-34√(7)