Question
Factorise : $x^2-17 x-84$
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| Expenses | Accommodation | Food | Clothing | Travel | Miscellaneous | saving |
| Amount $(Rs.)$ | $12000$ | $9000$ | $2500$ | $7500$ | $4000$ | $15000$ |
| Age (in years) | Number of students |
| Less than 10 | 6 |
| Less than 20 | 14 |
| Less than 30 | 30 |
| Less than 40 | 52 |
| Less than 50 | 65 |
| Less than 60 | 70 |