Question

solve the quadratic equation X 2+2x-4=0 by completion of square method​

Answer 1

Answer:

X^2 + 2x-4=0

X^2 + 2x=4

X^2 + 2x + 1 = 4+1             (1= (2/2)^2)

(x+1)^2=5

x+1=±√5

x=√5-1  or   x= -√5-1