Asap sarah used properties of operations to write the following three equivalent expressions to 1/2[ -4 + 8 + (-6)]. expression 1: 1/2 (-4) + 1/2(8) + 1/2(-6) expression 2: 1/2[(-4 + (-6)] + 4 expression 3: -2 + 4 + 3 which of the expressions is not equivalent and what was sarah’s error? a. there are no errors. all of the expressions are equivalent. b. expression 1. sarah can’t apply the distributive property if there are three addends. c. expression 2. sarah can’t combine -4 and -6. she must combine -4 with 8. d. expression 3. sarah applied the distributive property but incorrectly multiplied .