. Factorise:
i) y(y+z)+9(y+z)
ii) 10ab+4a+5b+2
iii) 6xy-4y+6-9
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Answer:
1) ( y + 9 ) ( y + z )
2) 2a(5b + 2) + 5b + 2
3)..... 6xy - 4y - 3.
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