How to Further Simplify the Expression (A + A*B)?

[manyi]

Homework Statement

(xy’+z)’.((xz)’+y')

The Attempt at a Solution

(xy’+z)’.((xz)’+y’)
=(x'+yz’).(x’+z’+y’)
=x’x’ + x’z’ + x’y’ + yz’x’ + yz’z’ + yz’y’
=x’ + x’z’ + x’y’ + yz’x’ + yz’ + z’

Can it be further siplify?

 

[Antiphon]

Yes it can.

How can you simplify A + A*B?