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प्रश्न
Add:
5x2 – 3xy + 4y2 – 9, 7y2 + 5xy – 2x2 + 13
उत्तर
We have,
(5x2 – 3xy + 4y2 – 9) + (7y2 + 5xy – 2x2 + 13)
= 5x2 – 3xy + 4y2 – 9 + 7y2 + 5xy – 2x2 + 13
= (5x2 – 2x2) + (–3xy + 5xy) + (4y2 + 7y2) + (–9 + 13) ...[Grouping like terms]
= 3x2 + 2xy + 11y2 + 4
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संबंधित प्रश्न
Add the following:
a − b + ab, b − c + bc, c − a + ac
Add:
3y2 − 10y + 16; 2y − 7
Add: −9y, 11y, 2y
Find the sum of the following expressions
a + 5b + 7c, 2a + 10b + 9c
The addition of 3mn, – 5mn, 8mn and – 4mn is
Find the expression to be added with 5a – 3b – 2c to get a – 4b – 2c?
Add:
2p4 – 3p3 + p2 – 5p + 7, –3p4 – 7p3 – 3p2 – p – 12
Add the following expressions:
ab + bc + ca and – bc – ca – ab
Each symbol given below represents an algebraic expression:
= 2x2 + 3y, 
= 5x2 + 3x, 
= 8y2 – 3x2 + 2x + 3y
The symbols are then represented in the expression:
Find the expression which is represented by the above symbols.
