Question

factorise 3x^3-10x^2+x+6 by factor theorem ​

Answer 1

Answer:

Let f(x) = 3x3 + 10x2 + x − 6

For x = − 1,

f(x) = f(−1) = 3(−1)3 + 10(−1)2 + (−1) − 6

= −3 + 10 − 1 − 6 = 0

Hence, (x + 1) is a factor of f(x).

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Answer 2

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