Advertisements
Advertisements
प्रश्न
If x = 2 and y = 3, then find the value of the following expressions
2x – 3y
उत्तर
Given: x = 2, y = 3
2x – 3y = 2(2) – 3(3) = 4 – 9
= 4 + (Additive inverse of 9)
= 4 + (– 9)
= – 5
APPEARS IN
संबंधित प्रश्न
Factorize: x3 + x - 3x2 - 3
Factorize x( x - 2)( x - 4) + 4x - 8
Factorize a2 + 2ab + b2 - c2
Factorize x4 + x2 y2 + y4
Factorize `21x^2 - 2x + 1/21`
Factorize the following expressions:
`8x^2y^3 - x^5`
Factorize the following expressions:
a3 + b3 + a + b
Factorize 8a3 – 27b3 – 36a2b + 54ab2
`2sqrt2a^3 + 16sqrt2b^3 + c^3 - 12abc`
Find the value of the following expression: 64x2 + 81y2 + 144xy, when x = 11 and \[y = \frac{4}{3}\]
If x2 + y2 = 29 and xy = 2, find the value of x4 + y4 .
If a2 + b2 + c2 = 250 and ab + bc + ca = 3, find a + b + c.
The value of \[\frac{(0 . 013 )^3 + (0 . 007 )^3}{(0 . 013 )^2 - 0 . 013 \times 0 . 007 + (0 . 007 )^2}\] is
Evaluate:
(i) (a + b)(a - b)
(ii) (a2 + b2)(a + b)(a - b); using the result of (i).
(iii) (a4 + b4)(a2 + b2)(a + b)(a - b); using the result of (ii).
Divide: 25x2y by - 5y2
Divide: 3y3 - 9ay2 - 6ab2y by -3y
Write in the form of an algebraic expression:
Perimeter (P) of a square is four times its side.
Write in the form of an algebraic expression:
Surface area of a cube is six times the square of its edge.
If Rohit has 5xy toffees and Shantanu has 20yx toffees, then Shantanu has ______ more toffees.
A school has a rectangular playground with length x and breadth y and a square lawn with side x as shown in the figure given below. What is the total perimeter of both of them combined together?
