(i)Given p(x)=3x
(ii)let p(x)=0
so,3x=0
x=
Zeros of the p(x)=
(ii)Given p(x)=x2+5x+6 is a quadratic polynomial.
It has almost two zeros
to find the zeros,let p(x)=0
x2+5x+6=0
x2+x + x+6=0
x(x+) + (x+)=0
x+=0 or x+=0
x=or x=
therefore the zeros of the polynomial are and
(iii)given p(x)=(x+2)(x+3)
It is a quadratic polynomial.
It has almost two zeros
let p(x)=0
(x+2)(x+3)=0
x+2=0 or x+3=0
x=or x=
therefore the zeros of the polynomial are And
(iv)Given p(x)=x4-16 is a biquadratic polynomial.It has almost two zeros
let p(x)=0
x4-16=0
(x2)2 - 2=0
(x2 - ) (x2 + )=0
(x+) (x-) (x2+)=0
x=(or) x=(or) x2=