Question

x^2 - 4x + 1 = 0. solve using quadratic formula​

Answer 1

Answer:

2+√3

Step-by-step explanation:

The quadratic formula states:

For ax2+bx+c=0, the values of x which are the solutions to the equation are given by:

x=−b±√b2−(4ac)2⋅a

Substituting:

1 for a

−4 for b

1 for c gives:

x=−(−4)±√(−4)2−(4⋅1⋅1)2⋅1

x=4±√16−42

x=4±√122

x=4−√4⋅32 and x=4+√4⋅32

x=4−√4√32