For the polynomial -2mnº + 2m'n + 7n? - 6m to be a binomial with a degree of 4 after it has been fully simplified, which
must be the missing exponent on the m in the second term?
oo

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .