Question

Solve.

x2 + 5x + 6 = 0

A.
{1, –6}

B.
{–1, 6}

C.
{2, 3}

D.
{–2, –3}

Answer 1

plug the numbers in, or use the ac method.

Answer 2

1*6=6 = 2*3

2+3 = 5

so

\(x^2+5x+6=0\implies x^2+2x+3x+6=0 \implies x(x+2)+3(x+2)=0\)

can you finish?