Advertisements
Advertisements
प्रश्न
Find the sum of 2x2 + xy − y2, − x2 + 2xy + 3y2 and 3x2 − 10xy + 4y2.
Advertisements
उत्तर
(2x2 + xy − y2) + (− x2 + 2xy + 3y2) + (3x2 − 10xy + 4y2)
= 2x2 + xy − y2 − x2 + 2xy + 3y2 + 3x2 − 10xy + 4y2
= 2x2 + 3x2 − x2 + xy + 2xy − 10xy + 3y2 + 4y2 − y2
= 5x2 − x2 + 3xy − 10xy + 7y2 − y2
= 4x2 − 7xy + 6y2
APPEARS IN
संबंधित प्रश्न
Subtract the first term from the second:
4ab, 6ba
Find the sum of x2 − x + 1, − 5x2 + 2x − 2 and 3x2 − 3x + 1
The sum of two expressions is 3a2 + 2ab – b2. If one of them is 2a2 + 3b2, find the other.
Fill in the blanks:
6 × 3 = .............. and 6x × 3x = ............
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 blanks:
12 × 4 = .............. and 12ax2 × 4ax = ............
In 94, which option correctly identifies the base and the exponent?
The exponent form of t × t × t × t is:
