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प्रश्न
Identify the term, their coefficients for the following expression:
9 − ab + bc − ca
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उत्तर
Definitions:
A term in an algebraic expression can be a constant, a variable or a product of constants and variables separated by the signs of addition (+) or subtraction (\[-\] ) . Examples: 27, x, xyz, \[\frac{1}{2} x^2 yz\] etc.
The number factor of the term is called its coefficient.
The expression
\[9 - ab + bc - ca\] consists of four terms — \[9, - \text { ab, bc and - ca }\]
The coefficient of the term 9 is 9.
The coefficient of \[- ab\] is \[-\]1.
The coefficient of \[bc\] is 1, and the coefficient of \[- ca\] is \[-\]1.
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| Food Item (Per Unit = 100g) | Carbohydrates |
| Rajma | 60g |
| Cabbage | 5g |
| Potato | 22g |
| Carrot | 11g |
| Tomato | 4g |
| Apples | 14g |
Write an algebraic expression for the amount of carbohydrates (in grams) for 2x units tomatoes and y units apples.
