Advertisements
Advertisements
प्रश्न
Add the following expressions:
ab + bc + ca and – bc – ca – ab
Advertisements
उत्तर
We have, ab + bc + ca + (– bc – ca – ab)
= ab + bc + ca – bc – ca – ab
On combining the like terms
= ab – ab + bc – bc + ca – ca
= 0 + 0 + 0
= 0
APPEARS IN
संबंधित प्रश्न
Subtract: 4pq - 5q2 - 3p2 from 5p2 + 3q2 - pq
Add the following algebraic expression:
3a2b, − 4a2b, 9a2b
Subtract 3x − 4y − 7z from the sum of x − 3y + 2z and − 4x + 9y − 11z.
The expressions 8x + 3y and 7x + 2y cannot be added
Find the sum of the following expressions
mn + t, 2mn – 2t, – 3t + 3mn
Find the expression to be added with 5a – 3b – 2c to get a – 4b – 2c?
Sum of x and y is x + y.
Sum of 2 and p is 2p.
Add the following expressions:
a2 + 3ab – bc, b2 + 3bc – ca and c2 + 3ca – ab
At age of 2 years, a cat or a dog is considered 24 “human” years old. Each year, after age 2 is equivalent to 4 “human” years. Fill in the expression [24 + 
(a – 2)] so that it represents the age of a cat or dog in human years. Also, you need to determine for what ‘a’ stands for. Copy the chart and use your expression to complete it.
| Age | [24 +  (a – 2)] |
Age (Human Years) |
| 2 | ||
| 3 | ||
| 4 | ||
| 5 | ||
| 6 |
