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प्रश्न
Find the square of 2x − 5y
योग
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उत्तर
(2x − 5y)2 = (2x)2 + (5y)2 − 2 × 2x × 5y
= 4x2 + 25y2 − 20xy
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संबंधित प्रश्न
Expand : (2a + b)2
Find the square of 9.7
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
Write the following numbers in standard notation.
200000 + 7000 + 7
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.
4038
Circle the correct one.
| a | 5 thousand + 3 hundred + 2 ones | 5320, 5302 |
| b | The place value of 5 in 3758 | 50, 500 |
| c | Three thousand six hundred and sixty | 3060, 3660 |
| d | 4000 + 600 + 90 | 4690, 4609 |
Write in expanded form:
74836
Write in expanded form:
8907010
