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).
उत्तर
Let P be the perimeter and l be the length, and b be the breadth.
P = 2 (l + b)
APPEARS IN
संबंधित प्रश्न
Get the algebraic expression in the following case using variables, constants and arithmetic operations.
Numbers x and y both squared and added.
Factorize `7(x - 2y)^2 - 25(x - 2y) + 12`
125 + 8x3 - 27 y3 + 90xy
The factors of 8a3 + b3 − 6ab + 1 are
Evaluate: (8 - 12x + 7x2 - 6x3)(5 - 2x)
Evaluate: - 4y (15 + 12y - 8z) (x - 2y)
Multiply: (2x + 3y)(2x + 3y)
Will the value of 11x for x = –5 be greater than 11 or less than 11? Explain.
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
