Posted by Raven on .
For the equation 2x 3  11x 2 + 12x + 9 = 0, the root 3 has a multiplicity of _____.

Math 
Reiny,
since we know 3 is a roots, x3 must be a factor, so
2x^3  11x^2 + 12x + 9
= (x3)(2x^2  5x  3)
= (x3)(x3)(2x+1)
so .....