I was going through Indices with some of the students recently when I notice this common misconception.
is read as Square Root which means the "default" number outside the square root sign is 2 NOT 1 which a couple of students have thought about.
I am going to write some tips on operations of standard form questions so I strongly suggest you subscribe to my feed if you have not done so,so that you will be posted when I write a new post .
[...] This topic is taught in Secondary 3 after introduction of Indices Law. [...]