Question

The zeros of the given quadratic polynomial are

Captionless Image
-2/3, 2/3
-3/2, 3/2
-2, 2
-3, 3

Answer 1

Answer:

Answer is option 4

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Answer 2

A number α is root / zero of a polynomial p(x), if P(α)=0

p(2)=2(2)3−11(2)2+17(2)−6

⟹p(2)=16−44+34−6⟹p(2)=0

p(3)=2(3)3−11(3)2+17(3)−6

⟹p(3)=54−99+51−6⟹p(3)=0

p(21)=2(21)3−11(21)2+17(21)−6

⟹p(21)=41−11+34−24⟹p(21)=0

Hence we say that 2, 3 and 21 are zeroes of the given polynomial

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