Question

if x+2 is a factor of x³+2ax²+ax -1 then find value of a ​

Answer 1

Answer:

If X+2 is a factor , than put x= -2 is a zero of given equation .

So , -8 + 8a -2a - 1 =0

=> 6a = 9

=> a = 3/2

Step-by-step explanation:

Answer 2

Answer:

3/2

Step-by-step explanation:

x³+2ax²+ax-1

(-2)³+2a(-2)²+a-2-1

-8+8a-2a-1

6a=9

a=3/2

hope it helped you