a. 4 b. 8 c. 10 d. 14

<p>Jawaban yang tepat adalah B. 8</p><p>&nbsp;</p><p>Pembahasan :</p><p>2x² &nbsp;- 5x - 3 = 0</p><p>2x² &nbsp;+ x - 6x &nbsp;- 3 = 0</p><p>x(2x + 1) -3(2x &nbsp;+ 1) = 0</p><p>(x - 3)(2x +1) = 0</p><p>x₁ = 3 atau x₂ = -1/2</p><p>&nbsp;</p><p>nilai 2x₁ - 4x₂ = 2(3) - 4(-1/2)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 6 + 2</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 8</p><p>&nbsp;</p>