Question

If x-2 is a factor of x^3-5x+a, then what Is the value of “a”?

Answer 1

Answer:

x+2=0

x=-2

just put the values

Step-by-step explanation:

(-2)^3-5×(-2)+a=0

-8+10+a=0

a=-2

Answer 2

Answer:

a = 2

Step-by-step explanation:

X - 2 =0

X = 2

Now put the value in x^3 + 5x + a =0

2^3 - 5(2) + a = 0

8 - 10 + a = 0

-2 + a =0

a = 2