Question

x² - 2x - 4=0 using quadratic formula​

Answer 1

Answer:

x=1±√5

Step-by-step explanation:

x² - 2x - 4=0

a=1, b=-2,c=-4

By using quadratic formula we have,

x=-b±√b²-4ac/2a

x=-(-2)±√(-2)²-4(1)(-4)/2(1)

x=2±√4+16/2

x=2±√20/2

x=2(1±√5)/2

x=1±√5

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