Question

Verify one kama minus one and 3 e are the the zeros of cubic polynomial x cube- 3 x square - X Plus 3

Answer 1

Answer:

p(x) = x³- 3x²-x+3

p(-1) = (-1)³-3× (-1)² -(-1) +3

= -1 -3 +1+3

= 0

p(1) = 1×1³-3×1²-1+3

= 0

p(3) = 3³-3×3²-3+3

= 9-9-3+3

= 0

Hence verified that 1,-1,3 are the zeroes of cubic polynomial x³-3x²-x+3

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