(b) 4x²y2 - 4xyz +
+ z2
Factorise by using identity
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Answered by
7
Answer:
4x²y2 - 4xyz + z2
solution,
= 4x²y2 - (2+2)xyz + z2
= 4x²y2 - 2xyz - 2xyz + z2
= 2xy(2xy - z) - z(2xy- z)
= (2xy - z) ( 2xy - z)
= (2xy - z)^2
Answered by
1
Answer:
(2xy-z)^2.............
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