корень из(-2x^2+5x+2)

√ -2x² + 5x + 2 = 0- 2x² + 5x + 2 = 0²2x² - 5x - 2 =0D = b² - 4ac = (-5)² - 4 × 2 × (-2) = 25 + 16 = 41x₁,₂ = 5₊/₋√41 / 4