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प्रश्न
Find the square of 2x − 5y
योग
उत्तर
(2x − 5y)2 = (2x)2 + (5y)2 − 2 × 2x × 5y
= 4x2 + 25y2 − 20xy
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संबंधित प्रश्न
Expand : (a – 2b)2
Find the square of 2x − 3y + z
Find the square of 9.7
Write the place name and place value of digit in the following number.
35,705
Write the place value of the underlined digit.
14,95,210
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.
7,00,000 + 80,000 + 4000 + 500
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
Write in expanded form:
574021
