(5)

Step 1:

The integral is .

Sum and difference rule of integral : .

Power rule of integral : .

.

Solution :

.

(6)

Step 1:

The integral is .

Sum and difference rule of integral : .

Power rule of integral : .

.

Solution :

.

(7)

Step 1:

The integral is .

Rewrite the integral.

Difference rule of integral : .

Power rule of integral : .

.

Solution :

.

(8)

Step 1:

The integral is .

Rewrite the integral.

Sum and difference rule of integral : .

Power rule of integral : .

.

Solution :

.