Mathematics
x4 - y4 = …………… (x - y)(x2 + y2)
0
1
x − y
x + y
Factorisation
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Answer
Given,
⇒ x4 - y4
⇒ (x2)2 - (y2)2
⇒ (x2 - y2)(x2 + y2)
⇒ [(x)2 - (y)2](x2 + y2)
⇒ (x + y)(x - y)(x2 + y2)
Hence, option 4 is correct option.
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