Advertisements
Advertisements
Question
Expand : (2a + b)2
Sum
Advertisements
Solution
(2a + b)2 = (2a)2 + (b)2 + 2 × 2a × b ......[(a+b)2 = a2 + b2 + 2ab]
= 4a2 + b2 + 4ab
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Find the square of `"a"+1/(5"a")`
Write the place name and place value of digit in the following number.
82,74,508
Write the place value of the underlined digit.
3,52,749
Write the place value of the underlined digit.
89,99,988
The expanded form of the number is given. Write the number.
7,00,000 + 80,000 + 4000 + 500
Write the following numbers in standard notation
30000 + 3000 + 300 + 30 + 3
Write the following numbers in standard notation.
4000000 + 400 + 4
Write the following numbers in expanded from.
1,45,70,004
Find the face value and place value of the digits coloured in the given numbers.
4038
Write in expanded form:
8907010
