Question

if x²+x+1=5 @nd x²-x+1=7,thenx⁴+x²+1=?
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Answer 1

Answer:

3

Step-by-step explanation:

x^2++x+1-x^2+x-1=5-7

2x=-2

x=-1

then

(-1)^4+(-1)^2+1=3