To reduce a radical, you have to divide by the number until you get to one. Its a square root, so you put the similar numbers that you divided by into groups of two. Most sets of are multiplied together and placed outside the radical. Its easier to use this method rather than using a calculator so you can get the actual answer.
Ex: Original Function= y=3x-2
Then you have to solve for x= y+2=3x y+2 ----- = x 3 Once I have x= ill switch to x and y. The y= is the inverse THIS IS A FUNCTION y=x+2 ------ 3 Put One function into the other x's and they come back as x's again, they are inverse funtions. Exponents blog
If there was an equation, "y, and z", and you wanted to multiply them it would make sence to make it 2+2 or 2*2. https://docs.google.com/document/d/1gCtSzgkI-YdBrvmVPlQvc4w4x_qQ0GxONou44BB2aG8/edit?usp=sharing
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