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9x^-3x-2=0

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9x^-3x-2=0

Posted by Raj Bhagat 6 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 6 years, 7 months ago

We have,
9x² - 3x - 2 = 0
{tex}\Rightarrow{/tex} 9x² - 6x + 3x - 2 = 0
{tex}\Rightarrow{/tex} 3x(3x - 2) + 1(3x - 2) = 0
{tex}\Rightarrow{/tex} (3x - 2)(3x + 1) = 0
{tex}\Rightarrow{/tex} 3x - 2 = 0 or, 3x + 1 = 0 {tex}\Rightarrow \quad x = \frac { 2 } { 3 } \text { or, } x = - \frac { 1 } { 3 }{/tex}
Thus, {tex}x = \frac { 2 } { 3 } \text { and } x = - \frac { 1 } { 3 }{/tex} are the required roots of the given equation.

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CBSE > Class 10 > Mathematics