Advertisements
Advertisements
प्रश्न
If x = 2 and y = 3, then find the value of the following expressions
2x – 3y
Advertisements
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 `7(x - 2y)^2 - 25(x - 2y) + 12`
Factorize the following expressions:
x6 + y6
If 3x + 5y = 11 and xy = 2, find the value of 9x2 + 25y2
Multiply: x2 + 4y2 + 2xy − 3x + 6y + 9 by x − 2y + 3
If a + b + c = 9 and ab + bc + ca = 40, find a2 + b2 +c2.
Mark the correct alternative in each of the following: The factors of a2 − 1 − 2x − x2 are
The expression x4 + 4 can be factorized as
Evaluate: (a2 + 2ab + b2)(a + b)
Multiply: (xy + 2b)(xy - 2b)
Divide: 8x + 24 by 4
Divide: 6x3 + 5x2 − 21x + 10 by 3x − 2
The simplest form of 5 ÷ `(3/2) - 1/3` is ______.
Which of the following expressions has the value 37?
If x = 2 and y = 3, then find the value of the following expressions
x + y
Number of terms in the expression a2 + bc × d is ______.
An equation is true for all values of its variables.
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?
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.
A student wrote an algebraic expression for “5 less than a number n divided by 3” as `n/3 - 5`. What error did the student make?
What type of algebraic expression is 2x−4y²?
