Question

check whether 1,2, 1/2 are zeroes of the cubic polynomial x³+3x²-x-3​

Answer 1

Answer:

Substitute 1,2,1/2 instead of x to obtain solution.

After Calculation only 1 is a zero of the cubic polynomial

Step-by-step explanation:

For 1,

1³+3(1)²-1-3 = 1+3-1-3=0

Therefore 1 is a zero of the polynomial equation

For 2,

2³+3(2)²-2-3 = 8 +12-2-3=15

Therefore 2 isnt a zero of the polynomial equation

For 1/2,

1/2³+3(1/2)²-1/2-3 = 1/8 + 3/4 -1/2 -3 = -19/8

Therefore 2 isnt a zero of the polynomial equation

Answer 2

Answer:

Hello.

Step-by-step explanation:

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