It is 36m + 72n which can be factorised to 36*(m + 2n)
It is 5x + 8y, which cannot be factorised or simplified.
Yes.
Commutative
no
m = n/(n-1)
jm + jn + km + kn = j(m + n) + k(m + n) = (m + n)(j + k)
6m + m + m + 4y + n + y + 12 + 2n Group like terms: 6m + m + m + 2n + n + 4y + y + 12 Add: 8m + 3n + 5y + 12
It would be the same number either way because its addition.
7(3x+7)
(x + 4)(x + 1)
3n + 15 equals 3 times the number n, the answer to which is increased by 15. It can only be evaluated if the value of n is known. The expression can be factorised but that is of marginal help in evaluating it.