Advertisements
Advertisements
Question
The sum of two expressions is 5x2 – 3y2. If one of them is 3x2 + 4xy – y2, find the other.
Sum
Advertisements
Solution
(5x2 − 3y2) − (3x2 + 4xy − y2)
= 5x2 − 3y2 − 3x2 − 4xy + y2
= 5x2 − 3x2 − 4xy − 3y2 + y2
= 2x2 − 4xy − 2y2
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Subtract the first term from the second:
4.8b, 6.8b
Find the sum of 3x + 4xy − y2, xy − 4x + 2y2 and 3y2 − xy + 6x.
Evaluate:
(6y − 13) − (4 − 7y)
Subtract:
5a − 3b + 2c from a − 4b − 2c.
Subtract:
4x − 6y + 3z from 12x + 7y − 21z.
Take − ab + bc − ca from bc − ca + ab.
Subtract x – 2y – z from the sum of 3x – y + z and x + y – 3z.
The sum of two expressions is 3a2 + 2ab – b2. If one of them is 2a2 + 3b2, find the other.
Fill in the blanks:
12 × 4 = .............. and 12ax2 × 4ax = ............
Fill in the blank:
3ab × 6ax = ..................
