Question

If (x-a) is a multiple of
$x {}^{3} - ax {}^{2} - 2x + 5a - 7$
then find the value of "a".​

Answer 1

Answer:

a= 7/3

Step-by-step explanation:

if x - a is a multiple of this equation then x = a is factor of this equation so ,

(a)³ - a(a)² -2a+5a-7=0

a³ - a³ + 3a - 7 = 0

3a= 7

a= 7/3