If x-a is factor of x^3-3x^2*a+2*a^2*x+b the find value of b
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EXPLANATION.
- GIVEN
if x - a is a factor of x^3 - 3x^2a + 2a^2x + b
TO FIND VALUE OF B.
x - a = 0
x = a
put the value of x = a in above equation
we get,
(a) ^3 - 3 (a)^2a + 2a^2(a) + b = 0
a^3 - 3a^3 + 2a^3 + b = 0
a^3 - a^3 + b = 0
0 + b = 0
b = 0
Therefore,
value of b = 0
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