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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
Evaluate using the expansion of (a + b)2 or (a – b)2 :
(208)2
Evaluate using the expansion of (a + b)2 or (a – b)2:
(9.4)2
Find the square of 391
Write the place value of the underlined digit.
14,95,210
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.
4000000 + 400 + 4
Write the following numbers in expanded from.
36,01,478
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 |
