Advertisements
Advertisements
प्रश्न
Separate the constants and variables from the following :
`-7,7+"x",7"x"+"yz",sqrt5,sqrt("xy"),(3"yz")/8,4.5"y"-3"x",`
8 −5, 8 − 5x, 8x −5y × p and 3y2z ÷ 4x
उत्तर
Clearly constants are: −7, `sqrt5`, 8 – 5
Variable are: 7 +x, 7x + yz,`sqrt("xy"),(3"yz")/8`,4.5y − 3x,
8 - 5x, 8x − 5y × p and 3y2z ÷ 4x
APPEARS IN
संबंधित प्रश्न
Factorize x3 - 2x2 y + 3xy2 - 6y3
Factorize the following expressions:
1029 – 3x3
Factorize the following expressions:
8a3 - b3 - 4ax + 2bx
Evaluate: - 4y (15 + 12y - 8z) (x - 2y)
Multiply: (2x + 3y)(2x - 3y)
Divide: 4a2 - a by - a
Divide: 12x3y - 8x2y2 + 4x2y3 by 4xy
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).
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 |
