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प्रश्न
Factorize each of the following algebraic expressions:
9a(6a − 5b) −12a2(6a − 5b)
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उत्तर
\[9a(6a - 5b) - 12 a^2 (6a - 5b)\]
\[ = (9a - 12 a^2 )(6a - 5b) [\text{ Taking }(6a - 5b)\text{ as the common factor }]\]
\[ = 3a(3 - 4a)(6a - 5b) [\text{ Taking 3a as the common factor of the quadratic }(9a - 12 a^2 )]\]
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Match the following :
| Column A | Column B |
| (a) `x/2` = 10 | (i) x = 4 |
| (b) 20 = 6x − 4 | (ii) x = 1 |
| (c) 2x − 5 = 3 − x | (iii) x = 20 |
| (d) 7x − 4 − 8x = 20 | (iv) x = `8/3` |
| (e) `4/11 - x = (-7)/11` | (v) x = −24 |
