obtain all the zeros of the polynomial FX equal to 2 x power 4 minus 3 x cube minus 3 X square + 6 x minus 2 if two of its zeros are root 2 and minus root 2
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Answered by
38
Hii friend,
✓2 and -✓2 are the factor of the given polynomial.
(X-✓2) (X+✓2) are the factor of the polynomial 2X⁴-3X³-3X²+6X-2.
Therefore,
(X-✓2) (X+✓2) = X²-(✓2)² = X²-2.
Divide the polynomial 2X⁴-3X³-3X²+6X-2 by X²-2.
We get,
Quotient = 2X²-3X+1
Factories the Quotient,
2X²-3X+1
2X²-2X-X+1
2X(X-1) -1 ( X-1)
(X-1)(2X-1)
X-1 = 0. OR 2X-1 = 0
X = 1. OR 2X = 1
X = 1. OR X = 1/2
Hence,
The other two zeros of the polynomial is 1 and 1/2.
HOPE IT HELPS!!!!
✓2 and -✓2 are the factor of the given polynomial.
(X-✓2) (X+✓2) are the factor of the polynomial 2X⁴-3X³-3X²+6X-2.
Therefore,
(X-✓2) (X+✓2) = X²-(✓2)² = X²-2.
Divide the polynomial 2X⁴-3X³-3X²+6X-2 by X²-2.
We get,
Quotient = 2X²-3X+1
Factories the Quotient,
2X²-3X+1
2X²-2X-X+1
2X(X-1) -1 ( X-1)
(X-1)(2X-1)
X-1 = 0. OR 2X-1 = 0
X = 1. OR 2X = 1
X = 1. OR X = 1/2
Hence,
The other two zeros of the polynomial is 1 and 1/2.
HOPE IT HELPS!!!!
Answered by
17
Here is ur answer.
Hope it helps you...
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