Advertisements
Advertisements
प्रश्न
Add the following:
l2 + m2, m2 + n2, n2 + l2, 2lm + 2mn + 2nl
Advertisements
उत्तर
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
संबंधित प्रश्न
Add: ab - 4a, 4b - ab, 4a - 4b
Subtract: (a - b) from (a + b)
Subtract: a (b - 5) from b (5 - a)
Add the following algebraic expression:
3a2b, − 4a2b, 9a2b
Add the following algebraic expression: \[\frac{7}{2} x^3 - \frac{1}{2} x^2 + \frac{5}{3}, \frac{3}{2} x^3 + \frac{7}{4} x^2 - x + \frac{1}{3}, \frac{3}{2} x^2 - \frac{5}{2}x - 2\]
Subtract the sum of 2x − x2 + 5 and − 4x − 3 + 7x2 from 5.
Solve the following equation.
10 = 2y + 5
Add: −9y, 11y, 2y
Add:
5x2 – 3xy + 4y2 – 9, 7y2 + 5xy – 2x2 + 13
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 |
