Note Zero for y x 2 IS 2 Zero for y x 2 3 is 2 However we say its multiplicity is 3 which is the power of x 2 factor So multiplicity of a zero is the power of the factor that gives that zero in this case it is power of x 2 1 We know Y x 2 x 1 has two zeros 2 and 1 1a what is multiplicity of 2 as a zero for above y why 1b what is multiplicity of 1 as a zero for above y why 2 what are zeros and their multiplicity for y 2 x x 4 5