Question

P(x) = x2+5X+6 check whether 3 is zero of P(x)?​

Answer 1

x²+5x+6=3²+5×3+6

=>9+15+6

=>30 answer

so,3 is not a zero of the polynomial p(x)

Answer 2

Answer:

x=3

${x}^{2} + 5x + 6$

$( {3}^{2}) + 5 \times 3 + 6$

$9 + 15 + 6$

$30$

So 3 is not the zero of p(x)