👤

direction:write polynomial or not polynomial
1.-9x
2.2x²-7x+4
3.7y
4.4x 1/2+7
5.1-3x+7x-5
6.x-¹ -7x³
7.(5x-1)(x-1)
8.y-6/7+1/2
9.3/x- x + 5x2​