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प्रश्न
Add:
13x2 − 12y2; 6x2 − 8y2
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उत्तर
(13x2 − 12y2) + (6x2 − 8y2)
= 13x2 − 12y2 + 6x2 − 8y2
= (13x2 + 6x2) + (−12y2 − 8y2)
= 19x2 + (−20y2)
= 19x2 − 20y2
संबंधित प्रश्न
Simplify combining like terms: 3a - 2b - ab - (a - b + ab) + 3ab + b - a
Add the following algebraic expression:
3a2b, − 4a2b, 9a2b
Subtract:
\[\frac{3}{2}x - \frac{5}{4}y - \frac{7}{2}z \text { from }\frac{2}{3}x + \frac{3}{2}y - \frac{4}{3}z\]
Subtract the sum of 3l − 4m − 7n2 and 2l + 3m − 4n2 from the sum of 9l + 2m − 3n2 and − 3l + m + 4n2 .....
Add:
2a + 6b + 8c; 16a + 13c + 18b
Add: −9y, 11y, 2y
The addition of 3mn, – 5mn, 8mn and – 4mn is
Find the expression to be added with 5a – 3b – 2c to get a – 4b – 2c?
Add:
7a2bc, –3abc2, 3a2bc, 2abc2
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 |
