Question

“Each set below has 3 expressions. There is ONE expression in EACH set that DOES NOT BELONG. Try to find the expression that does not belong in EACH SET and EXPLAIN WHY!” -please help im behind because I was online schooled at a bad school so now I’m at a different school and my tutor is sick.

Set 1: 3(x + 2) // 3x +6 // 3(2x)

Set 2: 1/2 (-4x) // 1/2 (2x - 6) // x - 3

Set 3: 24x + 8y // 2 (12x + 4y) // 8(3x + y)

Answer 1

Set 1: 3(2x)

Set 2: 1/2 (-4x)

Set 3: 2 (12x + 4y)

Explanation:

Set 1: 3(x+2) and 3x+6 are the same//3(x+2) =3x+6

Set 2: 1/2 (2x - 6) and x - 3 are the same//1/2 (2x - 6) = x-3

Set 3: 24x + 8y and 8(3x + y) are the same//2x+8y = 8(3x + y)