Hi!
Square roots where the things under the root are multiplied (for example ) can be split up into .
That's what I'm going to do in this case. I'm going to split into
Now, the cube root of 125 is 5, because 5 * 5 * 5 = 125, and that is the definition of a cube root. (What multiplied 3 times by itself is equal to what's under the root)
Now to look at what the cube root of is.
A cube root can be rewritten as , same as a square root can be rewritten to .
So if you take the cube root of x^12, you can change it to:
If you have a case like this, then you can multiply the two powers (in this case 12 and 1/3) to simplify it. 12 * 1/3 = 4, so you get x^4.
Now putting the two together, you get:
5 as your answer.
Hope this helped!
I think not fpr sure though
Answer:
Step-by-step explanation:
LCM= 20
3×4/5×4=12/20
3×5/4×5=15/20
So to take out 4 rational no. let's multiply 5 both up and down
12×5/20×5=60/100
15×5/20×5=75/100
Answer:
5(x-4) or 5(x-4)
Step-by-step explanation:
(not 100% sure though)
Answer:
-4
Step-by-step explanation:
it would be -9+5 which is basically 5-9=-4
so, the answer is -4.