Advertisements
Advertisements
प्रश्न
Write in the form of an algebraic expression:
Perimeter (P) of a rectangle is two times the sum of its length (l) and its breadth (b).
Advertisements
उत्तर
Let P be the perimeter and l be the length, and b be the breadth.
P = 2 (l + b)
APPEARS IN
संबंधित प्रश्न
Factorize `2a^2 + 2 sqrt6ab + 3b^2`
Factorize a2 + 2ab + b2 - c2
Factorize `5sqrt5x^2 + 20x + 3sqrt5`
Factorize 2( x + y)2 - 9( x + y) - 5
Factorize the following expressions:
x3y3 + 1
Factorize x3 -12x ( x - 4) - 64
Multiply: 9x2 + 25y2 + 15xy + 12x − 20y + 16 by 3x − 5y + 4
Write the value of 303 + 203 − 503.
Divide: 4x3 - 2x2 by - x
Divide:
n2 − 2n + 1 by n − 1
Divide: 8a2 + 4a - 60 by 2a - 5
Divide: x3 − 6x2 + 11x − 6 by x2 − 4x + 3
Write the coefficient of x2 and x in the following polynomials
`sqrt(3)x^2 + sqrt(2)x + 0.5`
If x = 2 and y = 3, then find the value of the following expressions
2x – 3y
If x = 2 and y = 3, then find the value of the following expressions
4y – x
The rate of planting the grass is ₹ x per square metre. Find the cost of planting the grass on a triangular lawn whose base is y metres and height is z metres.
In the given figure, the length of a green side is given by g and that of the red side is given by p.

Write an expression for the following pattern. Also write an expression if 100 such shapes are joined together.

Match Column I with Column II in the following:
| Column I | Column II |
| 1. The difference of 3 and a number squared | (a) 4 – 2x |
| 2. 5 less than twice a number squared | (b) n2 – 3 |
| 3. Five minus twice the square of a number | (c) 2n2 – 5 |
| 4. Four minus a number multiplied by 2 | (d) 5 – 2n2 |
| 5. Seven times the sum of a number and 1 | (e) 3 – n2 |
| 6. A number squared plus 6 | (f) 2(n + 6) |
| 7. 2 times the sum of a number and 6 | (g) 7(n + 1) |
| 8. Three less than the square of a number | (h) n2 + 6 |
Express the following properties with variables x, y and z.
Associative property of addition
In the term 10xyz, what is the numerical coefficient?
