Advertisements
Advertisements
प्रश्न
Expand : (2a + b)2
बेरीज
Advertisements
उत्तर
(2a + b)2 = (2a)2 + (b)2 + 2 × 2a × b ......[(a+b)2 = a2 + b2 + 2ab]
= 4a2 + b2 + 4ab
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Find the square of x+ 3y
Find the square of `"a"+1/(5"a")`
Evaluate using the expansion of (a + b)2 or (a – b)2 :
(188)2
Find the square of 391
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
Represent given values in Abacus.
Write in standard form: 7 lakhs + 5 thousands + 4 tens + 3 ones
Find the face value and place value of the digits coloured in the given numbers.
9876
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 |
The expanded form of the number 9578 is ______.
