Fully simplify.left bracket, 9, square root of, 81, end square root, right bracket, left bracket, 4, square root of, minus, 9, end square root, right bracket(9 81​ )(4 −9​ )

Fully simplify.left bracket, minus, 2, square root of, minus, 49, end square root, right bracket, left bracket, 5, square root of, minus, 100, end square root, right bracket(−2 −49​ )(5 −100​ )

Express in simplest radical form.x, squared, square root of, x, to the power 9 , end square rootx 2 x 9 ​

Simplify the expression to a, plus, b, ia+bi form:square root of, 9, end square root, minus, square root of, minus, 100, end square root, minus, square root of, 25, end square root, minus, square root of, minus, 4, end square root9​ − −100​ − 25​ − −4​

Express in simplest radical form.start fraction, square root of, 2646, end square root, divided by, square root of, 9, end square root, end fraction9​ 2646​ ​

Factor the expression completely.x, to the power 4 , minus, 9, x, squared, plus, 8x 4 −9x 2 +8