# math

sorry don't know how to do the radical sign.

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1. You will also have to insert brackets to clarify the order of operation here

e.g. I will do the 2nd one

assuming you meant:
7√(2x) + 2√(72x^3( - √(162x^5)
= 7√(2x) + 2√(2x) √(36x^2) - √(2x) √(81x^4)
= 7√(2x) - 12x√(2x) - 9x^2√(2x)
= √(2x) ( 7 - 12x - 9x^2)

clarify the first using brackets

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posted by Reiny

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