Question

express the sign of roots of the equation x²+3x+2=0​

Answer 1

Answer:

${x}^{2} + 3x + 2 = 0 \\ {x}^{2} + 2x + x + 2 = 0 \\ \\ \\ x(x + 2) + 1(x + 2) = 0 \\ (x + 2)(x + 1) = 0 \\ x + 2 = 0 \: and \: x + 1 = 0 \\ x = - 2 \: or \: x = - 1$