Advertisements
Advertisements
प्रश्न
The sum of two expressions is 3a2 + 2ab – b2. If one of them is 2a2 + 3b2, find the other.
Advertisements
उत्तर
(3a2 + 2ab − b2) − (2a2 + 3b2)
= 3a2 + 2ab − b2 − 2a2 − 3b2
= 3a2 − 2a2 + 2ab − b2 − 3b2
= a2 + 2ab − 4b2
APPEARS IN
संबंधित प्रश्न
Find the sum of 2x2 + xy − y2, − x2 + 2xy + 3y2 and 3x2 − 10xy + 4y2.
Find the sum of x2 − x + 1, − 5x2 + 2x − 2 and 3x2 − 3x + 1
Evaluate:
(6y − 13) − (4 − 7y)
Subtract:
5 − a − 4b + 4c from 5a − 7b + 2c.
Take − ab + bc − ca from bc − ca + ab.
From the sum of x + y – 2z and 2x – y + z subtract x + y + z.
Fill in the blanks:
6 × 3 = .............. and 6x2 × 3x3 = ............
Fill in the blanks:
4 × 7 = .............. and 4ax × 7x = ............
Fill in the blanks:
6 × 2 = .............. and 6xy × 2xy = ............
Fill in the blank:
− 5 × − 3x × 5x2 = ..................
