(iv) 25x² +9y² – 30xy (v) 25m2 - 40mm + 101
(vi) 8182 - 198 xy + 12/y- (vii) (x+y)2 - 4xy
(viii) ľ + 47+mº+ 4m4
2
(Hint: first expand (x + y)2
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) 25x² +9y² – 30xy (v) 25m2 - 40mm + 101
(vi) 8182 - 198 xy + 12/y- (vii) (x+y)2 - 4xy
(viii) ľ + 47+mº+ 4m4
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