Question

If x – 2 is a factor of x^3 – 2ax^2 +ax – 1 then the value of a is:

Select one:
a. 6/7
b. 7/6
c. -6/7
d. -7/6
please say this answer fast

Answer 1

x=2
substitute in equation
(2)^3 -2a(2)^2 +a(2) -1=0
8-8a+2a-1=0
7-6a=0
7=6a
a=7/6 is answer
option b is answer

Answer 2

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Here is ur answer which I wrote and attached for u ☺️


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