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प्रश्न
Find the square of 2x − 3y + z
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उत्तर
(2x − 3y + z)2 = (2x)2 + (−3y)2 + (z)2 + 2 × 2x × −3y + 2(−3y) × z + 2 × z × 2x
= 4x2 + 9y2 + z2 − 12xy − 6yz + 4zx
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संबंधित प्रश्न
Find the square of 2x − 5y
Find the square of `2"x"+1/"x"+1`
Write the place name and place value of digit in the following number.
82,74,508
Write the place value of the underlined digit.
50,000
The expanded form of the number is given. Write the number.
20,00,000 + 3,00,000 + 60,000 + 9000 + 500 + 10 + 7
Write the following numbers in standard notation.
200000 + 7000 + 7
Write the following numbers in standard notation.
8000000 + 70000 + 3000 + 30 + 5
Represent given values in Abacus.
3 Ten crores, 7 crores, 6 ten lakhs, 7 lakhs, 4 tens and 7 ones.
Represent given values in Abacus.
Write in standard form: 7 lakhs + 5 thousands + 4 tens + 3 ones
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 |
