Advertisements
Advertisements
Question
Evaluate using the expansion of (a + b)2 or (a – b)2 :
(9.4)2
Sum
Solution
(9.4)2 = (10 − 0.6)2
= (10)2 + (0.6)2 − 2 (10) (0.6)
= 100 + 0.36 − 12
= 88 + 0.36
= 88.36
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Find the square of x − 2y +1
Find the square of 3a − 2b − 5c
Find the square of `5-x+2/x`
Find the square of 2x − 3y + z
Find the square of 607
Write the place value of the underlined digit.
78,95,210
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.
36,01,478
Find the face value and place value of the digits coloured in the given numbers.
5136
Find the face value and place value of the digits coloured in the given numbers.
4038
