Advertisements
Advertisements
Question
Add the following:
l2 + m2, m2 + n2, n2 + l2, 2lm + 2mn + 2nl
Advertisements
Solution
The given expressions are written in separate rows, with like terms one below the other, and then the addition of these expressions is as follows:
l2 + m2
+ m2 + n2
l2 + n2
+ 2lm + 2mn + 2nl
__________________________________
2l2 + 2m2 + 2n2 + 2lm + 2mn + 2nl
Thus, the sum of the given expressions is 2l2 + 2m2 + 2n2 + 2lm + 2mn + 2nl.
APPEARS IN
RELATED QUESTIONS
Subtract 4p2q − 3pq + 5pq2 − 8p + 7q − 10 from 18 − 3p − 11q + 5pq − 2pq2 + 5p2q
Add: -7mn + 5, 12mn + 2, 9mn - 8, -2mn - 3
Subtract:
− 5xy from 12xy
Subtract:
2a − b from 3a − 5b
Add:
9p + 16q; 13p + 2q
On simplification `(3x + 3)/3` = ______.
Add:
3a(a – b + c), 2b(a – b + c)
Add the following expressions:
p2 – q + r, q2 – r + p and r2 – p + q
Add the following expressions:
t – t2 – t3 – 14; 15t3 + 13 + 9t – 8t2; 12t2 – 19 – 24t and 4t – 9t2 + 19t3
What should be added to x3 + 3x2y + 3xy2 + y3 to get x3 + y3?
