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3. Choose the correct square root by long division method

Answer variants:

|x^{2} + 5 x - 12|

|x^{2} - 5 x - 12|

|x^{2} - 5 x + 12|

|x^{2} + 5 x + 12|

The square root of the polynomial

x^{4} + 10 x^{3} + x^{2} - 120 x + 144

Did you find an error?