Q3 of 50 Page 9

Subtract:

(i) -5xy from 12xy


(ii) 2a2 from -7a2


(i) -5xy from 12xy


5xy from 12xy


After subtracting,we get


= 12xy - (- 5xy)


= 5xy + 12xy


= 17xy


(ii) 2a2 from -7a2


After subtracting, we get


= 2a2 + (-7a2)


= -2a2 + 7a2


= -9a2


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