Question

If (x + 1) is a factor of x2− 3ax +3a − 7, then the value of a is:​

Answer 1

Step-by-step explanation:

x + 1 = 0

x = -1

So , (-1)² - 3a(-1) + 3a - 7 = 0

1 + 3a + 3a - 7 = 0

6a - 6 = 0

6a = 6

a = 1