Advertisements
Advertisements
प्रश्न
Find the square of 3a − 2b − 5c
योग
Advertisements
उत्तर
(3a − 2b − 5c)2 = (3a)2 + (−2b)2 + (−5c)2 + 2 × 3a × −2b + 2 × (−2b)(−5c) + 2 × −5c × 3a
= 9a2 + 4b2 + 25c2 − 12ab + 20bc − 30ca
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Find the square of x+ 3y
Find the square of `2"x"+1/"x"+1`
Evaluate using the expansion of (a + b)2 or (a – b)2 :
(92)2
Write the place name and place value of digit in the following number.
35,705
Write the following numbers in standard notation.
8000000 + 70000 + 3000 + 30 + 5
Write the following numbers in expanded from.
1,45,70,004
Represent given values in Abacus.
3 Ten crores, 7 crores, 6 ten lakhs, 7 lakhs, 4 tens and 7 ones.
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 |
The expanded form of the number 9578 is ______.
Write in expanded form:
8907010
