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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
Simplify combining like terms: (3y2 + 5y - 4) - (8y - y2 - 4)
Add: a + b - 3, b - a + 3, a - b + 3
Add: x2 - y2 - 1 , y2 - 1 - x2, 1- x2 - y2
Subtract: 6xy from − 12xy
If \[x + \frac{1}{x} = 9,\] find the value of \[x^4 + \frac{1}{x^4} .\]
Add:
2a + 6b + 8c; 16a + 13c + 18b
Add: −9y, 11y, 2y
Add:
7a2bc, –3abc2, 3a2bc, 2abc2
The number of scarfs of length half metre that can be made from y metres of cloth is ______.
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.
