d=28g I might be wrong, but we can find this by dividing 140 by five, which equals 28.
Answer:
x+5 (under assumption you meant to do -3x
Step-by-step explanation:
you can use long division.
Take the leading coefficient x^4 and divide it by x^3. This results in x which is going to be the first part of you quotient. Now take that x and multiply it by the divisor (x^3 - 3). This gives you x(x^3 - 3) = x^4 - 3x. Now subtract that x^4 - 3x from the original polynomial and repeat this until you can't divide anymore

Do you mean 16/24 in simplest form? In that case it would be
16/24 = 8/12 = 4/6 = 2/3