Question

3. Add following.
1. a-b+ab,b-c+bc,c-a+ac
2.2p2 q2-3pq+4,5+7pq-3q2 q2
3. 12+me,m2+n2,n2+l2,2lm+2mn+2nl
(Don't Spam)​

Answer 1

Answer:

1.abc

2.2pq

3.12me

Step-by-step explanation: pls mark me as brainest

Answer 2

Answer:

1 . a-b +ab , b-c+BC , c-a+ ac

a-b+ab + b-c+ bc + c-a+ac

ab + bc + ac

2. 2p² q² -3pq + 4 , 5+7pq , -3q²p²

2p² q² -3pq + 4 + 5 +7 pq + (-3q² p²)

2p² q² -3pq + 4 + 5 +7 pq -3q² p²

-q²p² + 5pq + 9

3. 12+me , m²+n² , n² + 12 , 21 m +2mn + 2 nl

12 + me + m² + n² + n² + 12 +21 m + 2mn + 2 nl

24 + me + m² + 2 n² + 21 m + 2mn + 2 nl

Step-by-step explanation:

in 1 , a and -a were cut ( + , - = cancel )

similarly b and -b cancelled

similarly c and -c cancelled

in 2. 2 p²q² and -3 p² q² ... (- , + = - )

bcoz they are like terms

similarly 4 and 5 = add

similarly 7pq and -3pq - sub.