Which of the following is not a factor of
x4 – 4abx2 – (a2 – b2)
2?
Incredible29:
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x2+(a+b)2
let a=1,b=1
x4-4×1×1×x2-((1)2-(1)2)
x4-4x2-0
after expanding it answer is not 0
so,x2+(a+b)2 is not a factor
let a=1,b=1
x4-4×1×1×x2-((1)2-(1)2)
x4-4x2-0
after expanding it answer is not 0
so,x2+(a+b)2 is not a factor
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