Advertisements
Advertisements
प्रश्न
Find the sum of 4x2 + 7 − 3x, 4x − x2 + 8 and − 10 + 5x − 2x2.
Advertisements
उत्तर
(4x2 + 7 − 3x) + (4x − x2 + 8) + (− 10 + 5x − 2x2)
= 4x2 + 7 − 3x + 4x − x2 + 8 − 10 + 5x − 2x2
= 4x2 − x2 − 2x2 + 7 + 8 − 10 + 4x + 5x − 3x
= 4x2 − 3x2 + 15 − 10 + 9x − 3x
= x2 + 5 + 6x
APPEARS IN
संबंधित प्रश्न
Subtract the first term from the second:
4.8b, 6.8b
Subtract the first term from the second:
3.5abc, 10.5abc
Find the sum of 3x + 4xy − y2, xy − 4x + 2y2 and 3y2 − xy + 6x.
Evaluate:
(8a + 15b) − (3b − 7a)
Evaluate:
(8x + 7y) − (4y − 3x)
From the sum of x + y – 2z and 2x – y + z subtract x + y + z.
Subtract x – 2y – z from the sum of 3x – y + z and x + y – 3z.
Fill in the blanks:
6 × 2 = .............. and 6xy × 2xy = ............
Fill in the blanks:
15 × 3 = .............. and 15x × 3x5y2 = ............
Fill in the blank:
5x × 2x2y × (− 7y3) × 2x3y2 = ...............
