−9⋅(−30)minus, 9, dot, left parenthesis, start fraction, 0, divided by, minus, 3, end fraction, right parenthesis?
Is this the problem?
-9 ⋅ ( -30 ) - 9 ⋅ ( 0 / -3 )
= -9 ⋅ ( -30 ) - 9 ⋅ 0
= -9 ⋅ ( -30 ) - 0
= 270 - 0
= 270