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If x-a is a factor of x3 - 3x2a + 2a2x+b, then the value of b isA. 0 B. 2 C. 1 D. 3 |
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Answer» Let f (x) = x3 - 3x2a + 2a2x + b Since, x - a is a factor of f(x) So, f (a) = 0 a3- 3 a2 (a) + 2a2 (a) + b = 0 a3 - 3a3 + 2a3 + b= 0 b = 0 |
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