6x2 + 3x - 18 = 0 D = 9 + 4*9*18 = 441 = 212 x1 = (-3 +21)/(2*6) = 18/ 12 = 3/2 x2 = (-3 - 21)/(2*6) = -24/12 = 2

Linear Algebra | Homework answer #3954

Question #3954

6x^2 + 3x - 18 = 0

6x² + 3x - 18 = 0
D = 9 + 4*9*18 = 441 = 21²
x₁ = (-3 +21)/(2*6) = 18/ 12 = 3/2
x₂ = (-3 - 21)/(2*6) = -24/12 = 2