Question

If one zero of the polynomial x^2- 4x+ 1 is 2+ root 3, then find the other zero.

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Answer 1

Answer:

formula:

roots=-b+/-√b^2-4ac/2a

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

substitution the values of a,b,c

-(-4)+/-√(-4)^2-4(1)(1)/2(1)

4+/-√16-4/2

4+/-√12/2

4+/-2√3/2

2(2+/-√3)/2

2+/-√3

2+√3 or 2-√3