(-1/3)√18c^5 * (-6√8c^9)
2√144c^14 ---> I came until here but then didn't know how to proceed.
well, you can surely see that
√144 = 12
√c^14 = c^7
so,
2*12*c^7
24c^7
2√144c^14 ---> I came until here but then didn't know how to proceed.
√144 = 12
√c^14 = c^7
so,
2*12*c^7
24c^7