Step 1:

The integral is .

Apply sum and difference rule in integration: .

Apply constant formula: .

Apply formula: and .

.

.

Solution:

.

(10)

The integral is .

Apply sum and difference rule in integration: .

Apply formula: and .

.

Solution:

.

(11)

Step 1:

The integral is .

Apply sum and difference rule in integration: .

Apply power rule in integration:.

Apply formula: .

.

.

Solution:

.