christine814101 christine814101

12-08-2015
Mathematics

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which expression is not equivalent to this expression of 11y-5? is it 88y-40 or 5y-11 or 19y-3 or 22y-10?

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doss370 doss370

12-08-2015

11y-5
1st expression
88y-40
factorise
8(11y-5)
2nd expression
5y-11 (cannot be factorised)
3rd expression
19y-3(cannot be factorised)
4th expression
22y-10
factorise
2(11y-5)
so the answers are 5y-11 and 19y-3

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