Hi. I need help in this question of Discrete math

Show that (p +r)^( 4) and p (r^) are logically equivalent. Use both transformations (a proof with logical equivalences) (12 marks] and a truth table [12 marks) to answer this question. Make sure to show which boolean properties are used for every transformation. HINT: You must use the axiom "Definition of Implication":p ~q=pVq, where p and q represent any valid boolean expression