Question

2. Solve the following quadratic equations
using formula method :
(1) x2 + 6x + 5 = 0​

Answer 1

Answer:

x2+x+5x+5=0

x(x+1)+5(x+1)=0

(x+5)(x+1)=0

case 1. case2

x+5=0. x+1=0

x=-5. x=-1