Here's the question you clicked on:
buffon
Prove This Equation using Boolean Algebra multiplication? WY + W*YZ* + WXZ + W*XY* = WY + X*YZ* + XY*Z + W*XZ* Where the variable (or signal) in which i put the asterisk ('*') after is the Complement ... sorry , i can't write the Complement sign here (e.g Bar)
I Created 2 karnaugh maps to confirm both are same.(Attached).This is one of the ways to do this problem
try applying De Morgan's Law