Number. You need a number.
wich one
because it would be diffcult to understand.[you don't add or subtract the demonters]
Add heat.
add? dont you mean subtract?
No, you cannot add or subtract under the radical. The radical represents the square root function, and it only operates on the number or expression that is inside the radical. To add or subtract, you need to simplify the expressions inside the radical first.
You need common denominators. Then add or subtract the numerators. If the answer is an improper fraction it is common practice to reduce it to a mixed number.
So that you only have to add/subtract the numerator which makes it much easier.
does how many mean add or subtract
The opposite of add is subtract.
You need to understand what the question requires.
or else you cannot add or subtract them
it means to subtract