The radical is the number you use to each side of an equation.
for Example: n+21=54, to find the answer to this question you must minus both sides with the radical which is 21.
n+21=54
n+21-21=54-21
n=33
from what Ive seen the older grade (9) was doing a different type of radical as Sam was saying the radical is the root of such as squared and cubed, I believe that too, but right now in grade 8 we are doing something different.
Our radical we are working on in math is main use for algebra, and answering equation.
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Yes, I agree with what Christina says... THE GRADE NINES KNOW IT ALL. From reading everyone else's posts I have learned that what I thought a radical was isn't exactly right. Now I understand Radicals. Good. Fabulous. So yeah, hopefully this is 50 words I kind of don't want to check. But yeah, it's just kind of like the root of a number like the root of 4 is √2. I get it now.
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