Question

Show that 3 is a zero of the polynomial 2xcube minus x square minus 13x minus 6.hence find all the zeroes of this polynomial

Answer 1

write in a mathematical signs then we can understand

Answer 2

Answer:

First you need to solve P(3) = 0 where you have to substitute x as 3.

And then you need to divide the polynomial by x-3. Then you need to factorise your quotient, by factorising it you will get 2 answers which will be your 2 zeroes.