Question

Solve the following quadratic equations by completing the square method. a) x²-6x+8=0.​

Answer 1

Step-by-step explanation:

X^2 -6x +8=0

x^2 -6x= -8

x^2-6x +9 -9= -8

x^2 -6x+9 = -8+9= 1

( x -3)^2=1

x-3= +-√1=+-1

x-3=1. or x-3=-1

x=1+3=4 or x= -1+3=2

x=4,2