Advertisements
Advertisements
Question
Add the following expressions:
p2 – 7pq – q2 and –3p2 – 2pq + 7q2
Sum
Advertisements
Solution
We have, p2 – 7pq – q2 + (–3p2 – 2pq + 7q2)
= p2 – 7pq – q2 – 3p2 – 2pq + 7q2
On combining the like terms,
= p2 – 3p2 – 7pq – 2pq – q2 + 7q2
= –2p2 – 9pq + 6q2
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Subtract: - 5y2 from y2
Subtract:
− 5xy from 12xy
Subtract:
2a2 from − 7a2
The sum of –7pq and 2pq is ______.
The expression 13 + 90 is a ______.
Add the following expressions:
ab + bc + ca and – bc – ca – ab
Add the following expressions:
p2 – q + r, q2 – r + p and r2 – p + q
Add the following expressions:
uv – vw, vw – wu and wu – uv
Add the following expressions:
t – t2 – t3 – 14; 15t3 + 13 + 9t – 8t2; 12t2 – 19 – 24t and 4t – 9t2 + 19t3
Translate the following algebraic expression:
8(m + 5)
