I really need help i dont understand

Explanation below!

Step-by-step explanation:

For Example:

(-3x + 7)°

**Pretend ° is a small zero.

this is because number with an x like -3x cannot be added or subtracted with normal numbers like 7.

So the answer is basically: -3x + 7

This is how they work

Pretend (2) is a exponent.

A Example;

8(2) over 8(2) in your problem.

8(2) basically means 8 x 8.

8(3) means 8 x 8 x 8

8(0) means 8 because it's not gonna be multipled to anything. That's why its a 0.

and so on.

8 x 8 gets us 64.

So when we apply the exponent, the problem will transform to 64 over 64

2. Turn the fraction into an equation.

Fractions are turned to division equations. So all we have to do is divide 64 by 64 which gets us 1.

I will explain the rest later because I'm short on time, I hope this small information helps you at least a little!