Q:

which expressions are equivalent to -90 - 60wA : -30(3+2w)B : (-9-6w) ⋅ 10C : -3(30 - 20w)D : (6 + 4w)×15E : −20(4.5 + 3w)

Accepted Solution

A:
Answer:A : -30(3+2w) B : (-9-6w) ⋅ 10E : −20(4.5 + 3w)Step-by-step explanation:Using distributive property:A : -30(3+2w)  =  -90 - 60w          : equivalent to -90 - 60wB : (-9-6w) ⋅ 10  = -90 - 60w          : equivalent to -90 - 60wC : -3(30 - 20w)  = -90 + 60w       : NOT equivalent to -90 - 60wD : (6 + 4w)×15  = 90 + 60w          : NOT equivalent to -90 - 60wE : −20(4.5 + 3w) = - 90 - 60w     : equivalent to -90 - 60wAnswer:A : -30(3+2w) B : (-9-6w) ⋅ 10E : −20(4.5 + 3w)