Answer :

(i) While adding or subtracting, the like term`s numerical coefficient are added or subtracted

(5 + 1+ 3)a + (3 – 2 +5) b


9 a + 6b


(ii) While adding or subtracting, the like term`s numerical coefficient are added or subtracted


(1–1) x3 + (–1+3) x2y + (5–9 +9) xy2 + (1+1) y


0x3 + 2 x2y +5xy2 +2y


2 x2y +5xy2 +2y


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