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Find the value of x for given equation 3x2 + 5x - 2 = 01. -3 and -22. 3 and -1/23. 2 and -34. -2 and 1/3 |
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Answer» Correct Answer - Option 4 : -2 and 1/3 Given: 3x2 + 5x - 2 = 0 Concept used: Factorisation Calculation: ⇒ 3x2 + 5x - 2 ⇒ 3x2 + 6x - x - 2 ⇒ 3x(x + 2) -1(x + 2) ⇒ (3x - 1)(x + 2) ⇒ 3x - 1 = 0 so x = 1/3 ⇒ x + 2 = 0 so x = -2 ∴ x = -2 and 1/3 |
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