Question

If ( x+1) is a factor of x2-3ax+3a-7. Then the value of a is:

a- 1

b -1

c 0

d 2

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Answer 1

Answer:

I have sent the answer. pls check and confirm.

Answer 2

SOLUTION:

f(x) = x2-3ax+3a-7 and x+1 is the root of it.

So, by factor Theorem, we have

f(-1) = 0

So, f(-1) = (-1)^2 - 3a(-1)+3a-7 = 0

6a = 6

a = 1

So, option a is correct.

Hope this helps