poposki
poposki
26-03-2014
Mathematics
Answered
Factorise: -1
x
^2
y
^2+
x
^4-2
y
^4
Answer :
madankapoor10
madankapoor10
26-03-2014
[tex]x^{4}-x^{2}y^{2}-2y^{4}[/tex]
[tex]=x^{4}-2x^{2}y^{2}+x^{2}y^{2}-2y^{4}[/tex]
[tex]=x^{2}(x^{2}-2y^{2})+y^{2}(x^{2}-2y^{2})[/tex]
[tex]=(x^{2}-2y^{2})(x^{2}+y^{2})[/tex]
Answer Link
deathstrike001
deathstrike001
26-03-2014
-x^2y^2(1-x^2+2y^2)
hope this helps
Answer Link
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