brookemlawson brookemlawson 08-04-2016 Mathematics contestada When factored completely, the expression p^4 - 81 is equivalent to (1) (p^2 + 9)(p^2 - 9) (2) (p^2 - 9)(p^2 - 9) (3) (p^2 + 9)(p + 3)(p - 3) (4) (p + 3)(p - 3)(p + 3)(p - 3)PLEASE HELP ILL LOVE U FOREVER