Question

find the quadratic polynomials whose zeros are (5+2root 3) and (5-2 root 3)

Answer 1

this is a conjugate pair of roots after take the sum of the roots= 5+2root 3 + (5-2root 3) add u will get = 5 the whole square and -2 root the whole square this i got from the formula (a+b) (a-b) =(a square - b square) u will get 25-4 into3 =25-12=13