2sqrt{x}+5sqrt{9x}-19sqrt{x}= (-12sqrt{x}+5sqrt{9x})
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. -12sqrt{x}+5sqrt{9x}= (Simplify your answer. Type an exact answer, using radicals as needed.)
B. The expression cannot be simplified.
Add and subtract by first simplifying each radical and then combining any like radical terms. Assume that all variables represent positive real numbers.
2x+5sqrt{9x}-19x
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. 2x+5sqrt{9x}-19x= (Simplify your answer. Type an exact answer, using radicals as needed.)
B. The expression cannot be simplified.