Question

Find the zeros of the polynomial 3x cube + x-2

Answer 1

Answer:

3x^2 + x - 2 = 0

( 3x^2 + 3x ) ( -2x - 2)=0

3x(x + 1) -2 (x+1) =0

(3x -2) (x+1) =0

3x -2 = 0

3x = 2

x = 2/3

x+1=0

x = -1

thereby, 2/3 and -1 are the zeros of the polynomial.