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प्रश्न
Find the sum of 3a + 4b + 7c, − 5a + 3b − 6c and 4a − 2b − 4c.
उत्तर
(3a + 4b + 7c) + (− 5a + 3b − 6c) + (4a − 2b − 4c)
= 3a + 4b + 7c − 5a + 3b − 6c + 4a − 2b − 4c
= 3a + 4a − 5a + 4b + 3b − 2b + 7c − 6c − 4c
= 7a − 5a + 7b − 2b + 7c − 10c
= 2a + 5b − 3c
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संबंधित प्रश्न
Find the sum of 4x2 + 7 − 3x, 4x − x2 + 8 and − 10 + 5x − 2x2.
Evaluate:
7 − (4a − 5)
Take − ab + bc − ca from bc − ca + ab.
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By how much should x + 2y – 3z be increased to get 3x?
Fill in the blanks:
5 × 4 = .............. and 5x × 4y = ............
Fill in the blank:
4x × 6x × 2 = .....................
Fill in the blank:
− 8x × − 3x = − ....................
Fill in the blank:
− 5 × − 3x × 5x2 = ..................
Fill in the blank:
− 4x × 5xy × 3z = ....................
