Question

is x+5a factor of x³+3x²+15x+20​

Answer 1

Answer:

not factor

Step-by-step explanation:

there is no a in the sum

Answer 2

Answer:

Factor theorem:-x-a is a factor of the polynomial p(x), if p(a) = 0. Also, if x-a is a factor of p(x), then p(a) = 0.

Please check the attached figure :)

3f92c8048eb623163543b3431908ae0f.pdf