Question

Which of the following is a zero of the polynomial x² + 5x + 6
3
-3
5
6​

Answer 1

Answer:

-3 is a zero of polynomial x²+5x+6

let

p(x)=x²+5x+6

x=3

p(3)=3²+5×3+6

p(3)=9+15+6

p(3)=30

it is not zero of the polynomial x²+5x+6

p(-3)= (-3)²+5(-3)+6

=9-15+6

= 0

it is 0 of the polynomial x²+5x+6

p(5)=5²+5×5+6

= 25+25+6

=56

it is not 0of the polynomial x²+5x+6

p(6)=6²+5×6+6

= 36+30+6

=72

it is not 0of polynomial x²+5x+6

Answer 2

Answer:

-3

Step-by-step explanation:

=x² + 5x + 6

=x²+3x+2x+6

=x(x+3)+2(x+3)

=(x+3)(x+2)

x= -2 or x= -3