Advertisements
Advertisements
Question
Multiply: (2x - 3y)(2x + 3y)
Advertisements
Solution
(2x - 3y)(2x + 3y)
⇒ 2x (2x + 3y) - 3y(2x + 3y)
⇒ 2x × 2x + 2x × 3y - 3y × 2x - 3y × 3y
⇒ 4x2 + 6xy - 6xy - 9y2
⇒ 4x2 + 0 - 9y2
⇒ 4x2 - 9y2
APPEARS IN
RELATED QUESTIONS
Factorize `x^2 + 12/35 x + 1/35`
125 + 8x3 - 27 y3 + 90xy
Multiply: (xy + 2b)(xy - 2b)
Divide: 35a3 + 3a2b - 2ab2 by 5a - b
Which of the following expressions has the value 37?
The largest number of the three consecutive numbers is x + 1, then the smallest number is ________
Write the variables, constant and terms of the following expression
29x + 13y
Write the variables, constant and terms of the following expression
b + 2
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?
Will the value of 11x for x = –5 be greater than 11 or less than 11? Explain.
