Advertisements
Advertisements
प्रश्न
Simplify: 7n2 – 9n2 + 3n2
Advertisements
उत्तर
7n2 – 9n2 + 3n2
= 7n2 + 3n2 – 9n2
= 10n2 - 9n2 = n2
APPEARS IN
संबंधित प्रश्न
Add : - 9x, 3x and 4x
Find the sum of: a2 + b2 + 2ab, 2b2 + c2 + 2bc and 4c2 -a2 + 2ac
Find the sum of: + 4a and -7b
The co-efficient of ab in the term 15 abc is 15
Find the numerical co-efficient of the following term:
−3yx
Write the greatest common factor in the following terms.
2xy, –y2, 2x2y
Factorise the following expression.
a3 + a2 + a + 1
Identify term and factor in the expression given below:
5y + 3y2
If (x2y + y2 + 3) is subtracted from (3x2y + 2y2 + 5), then coefficient of y in the result is ______.
Observe the following nutritional chart carefully:
| Food Item (Per Unit = 100g) | Carbohydrates |
| Rajma | 60g |
| Cabbage | 5g |
| Potato | 22g |
| Carrot | 11g |
| Tomato | 4g |
| Apples | 14g |
Write an algebraic expression for the amount of carbohydrates (in grams) for y units of potatoes and 2 units of rajma.
