Question

(x-3)is a factor of x²+2x+15? Yes Or No?​

Answer 1

By remainder theorm ,

x - 3 = 0

$\mathtt{\boxed{\blue{x = 3}}}$

Put x = 3 in given eqñ .

→ 3² + 2 × 3 + 15

→ 9 + 6 + 15

→ 30 .