Advertisements
Advertisements
Question
Factorise the following expression.
3pqr – 6p2q2r2 – 15r2
Advertisements
Solution
We have,
3pqr – 6p2q2r2 – 15r2
= 3pqr – 3 × 2p2q2r2 – 3 × 5r2
= 3r(pq – 2p2q2r – 5r)
APPEARS IN
RELATED QUESTIONS
Separate constant terms and variable terms from tile following:
8, x, 6xy, 6 + x, - 5xy2 , 15az2 , `(32"z")/"xy", "y"^2/"3x"`
For the following monomials, write its degree: – 2p2q3r4
Group the like term together: ab, – a2b, – 3ab, 5a2b and – 8a2b
Write numerical co-efficient of the following: y
Write numerical co-efficient of the following: - y
The two adjacent sides of a rectangle are 6a + 96 and 8a- 46. Find its, perimeter.
Simplify: {9 – (4p – 6q)} – {3q – (5p – 10)}
Simplify: `10 – {4"a" – (7 – bar ("a" - 5) - (5"a" - bar(1 + "a")))`
Factorise the following expression.
6ab + 12bc
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 2x units tomatoes and y units apples.
