Question

I need these math questions answered as soon as possible. I have no idea how to solve these last two questions on my test. Thanks in advanced!!!

Indentify the real roots and state their multiplicity.
x^4 + 2x^3 - 23x^2 - 24x +1 44 = 0
A. root –4, multiplicity 2; root 3, multiplicity 2
B. root –4, multiplicity 1; root 3, multiplicity 2
C. root –4, multiplicity 2; root 3, multiplicity 1
D. root –4, multiplicity 1; root 3, multiplicity 1


Find all possible rational roots of the following polynomial equation.
2x^3 + 3x^2 - 4x + 3 = 0

Answer 1

Answer = A

-4 and 3 are the roots of the equation

(x  + 4)(x + 4)

2 will be the factor

Divide x^2 + 8x + 16

x^2 - 6x + 9  

(x - 3)(x - 3)