The value of A matrix in ẋ = Ax for the system describe

The value of A matrix in ẋ = Ax for the system describe by the different equation
ẏ̇ + 2 ẏ + 3y = 0, is

Let x₁ = y
and x₂ = x₁̇ = ẏ
∴ x₂̇ = x₁̇̇ = ẏ̇
ẏ̇ + 2 ẏ + 3y = 0
x₂̇ + 2x₂ + 3x₁ = 0
x₂̇ = – 3x₁ – 2x₂
x₁̇ = x₂

	x₁̇		=		0			1				x₁
	x₂				-3			-2				x₂

∴ A =		0			1
		-3			-2