Advertisements
Advertisements
Question
Find the square of `2"x"+1/"x"+1`
Advertisements
Solution
`(2"x"+1/"x"+1)^2=(2"x")^2+(1/"x")^2+(1)^2 +2xx2"x"xx1 /"x"+2xx1/"x"xx1+2xx1xx2"x"`
`=4"x"^2+1/"x"^2+1+4+2/"x"+4"x"`
`=4"x"^2+1/"x"^2+5+2/"x"+4"x"`
APPEARS IN
RELATED QUESTIONS
Find the square of `"a"+1/(5"a")`
Find the square of x − 2y +1
Find the square of 391
Write the place name and place value of digit in the following number.
35,705
The expanded form of the number is given. Write the number.
60,000 + 4000 + 600 + 70 + 9
The expanded form of the number is given. Write the number.
9,00,000 + 20,000 + 7000 + 800 + 5
The expanded form of the number is given. Write the number.
80,00,000 + 50,000 + 1000 + 600 + 9
Find the face value and place value of the digits coloured in the given numbers.
1379
Complete the given table.
| Number | Expanded Form | |
| a | 6785 | |
| b | 4000 + 200 + 90 + 6 | |
| c | 3000 + 300 + 20 + 7 | |
| d | 9999 | |
| e | 5000 + 70 + 1 | |
| f | 2934 |
Write in expanded form:
74836
