Question

$9 {x}^{2} - 3x - 2 = 0$
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Answer 1

Answer:

★ 9x² - 3x - 2 = 0

➞ 9x² - (6 - 3)x - 2 = 0

➞ 9x² - 6x + 3x - 2 = 0

➞ 3x(3x - 2) + 1(3x - 2) = 0

➞ (3x - 2) (3x + 1) = 0

➞ (3x - 2) = 0

➞ 3x - 2 = 0

➞ 3x = 2

➞ x = 2/3

Either,

➞ (3x + 1) = 0

➞ 3x + 1 = 0

➞ 3x = - 1

➞ x = - 1/3

∴ The answer of this question is x = 2/3, - 1/3