Question

xsquare - 3x/10-1/10=0​

Answer 1

${x}^{2} - \frac{3x}{10} - \frac{1}{10} = 0 \\ \\ = > \frac{10 {x}^{2} - 3x - 1}{10} = 0 \\ \\ = > 10 {x}^{2} - 3x - 1 = 0 \\ \\ = > 10 {x}^{2} - 5x + 2x - 1 = 0 \\ \\ = > 5x(2x - 1) + 1(2x - 1) = 0 \\ \\ = > (5x + 1)(2x - 1) \\ \\ thus \\ 5x + 1 = 0 \\ \\ = > 5x = - 1 \\ \\ = > x = \frac{ - 1}{5} \\ \\ and \\ 2x - 1 = 0 \\ \\ = > 2x = 1 \\ \\ = > x = \frac{1}{2}$

Answer 2

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