x3-5x2+x is already simplified.
5(23)+17-3(2)= 51.
Why don't you figure it out yourself
16 to the 4th power, or 16 x 16 x 16 x 16 = 65,536
(3y2)4*3y2*3y2*3y2*3y2 = 38*y16 = 6561y16
3x2 can be called "three times x squared", "three x squared", or "three times x to the power of two".
no
The answer depends on what the question is!
-144
All the time
Yes, of 72
Two plus 3 minus 2 times 1 squared plus 4 times 16 squared minus 4 times 2 is equal to 1,019.
31
Tan^2
When a number is to the 'third power,' that means that you are going to be multiplying the number by itself three times.
81 x 2 - 16 = 146
I believe A2 times A2=A4 (A to the power of 4).
You have to put your heart into it!