Question

Resolva a seguinte equação do 29 grau.
2x2 + 5x - 3=0​

Answer 1

$2x^2+5x-3=0\\x_{1,\:2}=\frac{-5\pm \sqrt{5^2-4\cdot \:2\left(-3\right)}}{2\cdot \:2}\\x_{1,\:2}=\frac{-5\pm \:7}{2\cdot \:2}\\x_1=\frac{-5+7}{2\cdot \:2},\:x_2=\frac{-5-7}{2\cdot \:2}\\x=\frac{1}{2},\:x=-3$

• x₁ = 1/2

• x₂ = -3