Question

if two zeros of the polynomial P(x)=x^3+2x^2-9x-18 are 3 and -3 find other zeros of the polynomial​

Answer 1

Answer:

Given, P(x)=

${x}^{3} + {2x}^{2} - 9x - 18 \\ = 0 {}^{3} +( 2 \times {0}^{2} ) -( 9 \times 0) - 18 \\ = 0 + 0 - 0 - 18 \\ = - 18$