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
Expand : (2a + b)2
Evaluate using the expansion of (a + b)2 or (a – b)2 :
(92)2
Evaluate using the expansion of (a + b)2 or (a – b)2 :
(188)2
Write the place value of the underlined digit.
78,95,210
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.
20,00,000 + 3,00,000 + 60,000 + 9000 + 500 + 10 + 7
The expanded form of the number is given. Write the number.
7,00,000 + 80,000 + 4000 + 500
Write the following numbers in expanded from.
28,48,387
Find the face value and place value of the digits coloured in the given numbers.
1379
Find the face value and place value of the digits coloured in the given numbers.
8965
