Question

Add the following expressions:

(i) 8a – 6ab + 5b, –6a – ab – 8b and –4a + 2ab + 3b

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Answer 1

Answer:

-2a -5ab

Step-by-step explanation:

group like and unlike terms .add by column method.

Answer 2

Answer:

(i)-2a -5ab

Step-by-step explanation:

(i) 8a – 6ab + 5b, –6a – ab – 8b and –4a + 2ab + 3b

= 8a – 6ab + 5b +{–6a – ab – 8b}+ {–4a + 2ab + 3b}

=8a – 6ab + 5b –6a – ab – 8b –4a + 2ab + 3b

=8a –6a –4a – 1ab – 6ab + 2ab + 3b + 5b – 8b

=8a - 10a +2ab -7ab +8b -8b

= -2a -5ab