Factorise x^2+6x+8=0 to get (x+4)(x+2)=0 Solve to get x=-4, x=-2 Factorise x^2+6x+13=0 (I assumed you mistyped and wrote * instead of +) Use the quadratic formula and you find that there are no real roots so the answer for this is just x=-4, x=-2 Tell me if I made any mistakes
