Answer:
2x(x - 4)
Step-by-step explanation:

Multiply top by top
2 * -3 = -6
Multiply bottom
7 * 8 = 56
The answer is -6/56
Simplify = -3/28
Uhh yes it is wayyy before 2,589 I believe
This should be the equation:
n + 4/3n + 5/3n = 90
yes it is correct
with parentheses you have to bring EVERYTHING INSIDE THE PARENTHESES to the given power but not if there are no parentheses