[tex]2x^{2}+3x-5 = 0\\\\a = 2, \ b = 3, \ c = -5\\\\\Delta = b^{2}-4ac = 3^{2}-4\cdot2\cdot(-5) = 9 + 40 = 49\\\\\Delta > 0, \ sa \ dwa \ pierwiastki \ rownania[/tex]
