Need help doing this for an exam - I keep getting the wrong answer

ABC+ ABC' + AB'C + A'BC = AB + AC + BC

Thank you in advanced

 

Hi,

What did you do so far?

 

Hint: Try adding redundant terms to either side of the identity in such a way that the result is unaffected.
2nd Hint: Make yourself a truth table to verify that the expression is indeed an identity.

 

Need help doing this for an exam - I keep getting the wrong answer

ABC+ ABC' + AB'C + A'BC = AB + AC + BC

Thank you in advanced

How can we tell you why you keep getting the wrong answer when you don't show us what you did or what answer you got?

Can you find two terms on the left that reduce to the first term on the right?

Can you find two terms on the left that reduce to the second term on the right?

Do you see a pattern developing?