obtain all the zeros of the polynomial f(x)=x⁴-7x³+10x²-14x-2, if two of its zeroes are +√2 and -√2

obtain all the zeros of the polynomial f(x)=x⁴-7x³+10x²-14x-2, if

1.	obtain all the zeros of the polynomial f(x)=x⁴-7x³+10x²-14x-2, if two of its zeroes are +√2 and -√2
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