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प्रश्न
Identify the term, their coefficients for the following expression:
3x2y2 − 5x2y2z2 + z2
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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
\[3 x^2 y^2 - 5 x^2 y^2 z^2 + z^2\] consists of three terms , i.e.,
\[3 x^2 y^2\], \[- 5 x^2 y^2 z^2\] and \[z^2\].
The coefficient of
\[3 x^2 y^2\] is 3. The coefficient of \[- 5 x^2 y^2 z^2\] is \[- 5\] and the coefficient of \[z^2\] is 1.
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Observe the following nutritional chart carefully:
| 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 y units of potatoes and 2 units of rajma.
