Question

find the zeroes of p(x)=x4-16
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Answer 1

zeroes are 2 and -2 x4 = x2×x2

Answer 2

X⁴-16=0

X⁴=16

X= ±2

The zeroes are 2 and -2. The other two zeroes are complex numbers i.e they do not fall in the category of real numbers

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