Find all the zeros of the polynomial x⁴ + x³ – 34x² –4x + 120, if two of its zeros are 2 and –2.
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Step-by-step explanation:
- (x⁴ + x³ – 34x² –4x + 120)/x-2
- (x⁴ + x³ – 34x² –4x + 120)/x+2
- solve the quadratic equation formed
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