find value of a ,if x-a is a factor of X^3-ax^2+2x+a-1
Plz do in copy and answer will be 1/3
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Answer:
<3
Step-by-step explanation:
x - a is a factor of
{x}^{3} - ax {}^{2} + 2x + a - 1
we know,
x - a = 0
x = 0+a = a
Substitung the value of x as a,
we have,
(a)^3 - a(a)^2 + 2(a) + a - 1 =0
a^3 - a^3 + 2a + a - 1=0
3a - 1=0
3a =1
a = 1/3
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