this video show you how to find square roots and cube roots of numbers only whole numbers you will not get a question on your exam where the number under the root sign is negative i was just explaining that because it is common question and good to know extra knowledge is always good but you do not need it at this level any more questions just ask me and i will reply
Duration : 0:4:37
[youtube XdzH1k7KrVE]
5/5 ^_^
5/5 ^_^