N(x)−M(x)=−5x4−4x3+2x2+8x
N(x)=−5x4−4x3+2x2+8x+M(x)=−5x4−4x3+2x2+8x+(3x5−4x3+9x+2)
N(x)=3x5−5x4−8x3+2x2+17x+2
Q(x)+M(x)=3x4−2x3+9x2−7
Q(x)=3x4−2x3+9x2−7−M(x)=3x4−2x3+9x2−7−(3x5−4x3+9x+2)
Q(x)=−3x5+3x4+2x3+9x2−9x−9
