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प्रश्न
Find the sum of 4x2 + 7 − 3x, 4x − x2 + 8 and − 10 + 5x − 2x2.
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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
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संबंधित प्रश्न
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.
Add the following expression:
− 17x2 − 2xy + 23y2, − 9y2 + 15x2 + 7xy and 13x2 + 3y2 − 4xy
Add the following expression:
− x2 − 3xy + 3y2 + 8, 3x2 − 5y2 − 3 + 4xy and − 6xy + 2x2 − 2 + y2
Evaluate:
(8a + 15b) − (3b − 7a)
Evaluate:
7 − (4a − 5)
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:
5 × 4 = .............. and 5x × 4y = ............
The value of y1 is:
