If ( x - 1 ) is a factor of x^4-5x^3+ax^2+5x-k, then a - k=?please ans – InterviewSolution

1.

If ( x - 1 ) is a factor of x^4-5x^3+ax^2+5x-k, then a - k=?please answer me with the process...

Answer»

X = 1

then PUT x = 1

1 ^4 - 5×1^3 +a×1^2+5×1-k

1 - 5 +1a + 5 -k

1 +1a-1k

1a -1k = -1

a-k = -1

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