1.1 · Roots of polynomial equationsLesson 2 of 15Free preview
Roots and coefficients of a quadratic equation
Multiply out a(x − α)(x − β) and compare: the sum of the roots is −b/a and the product is c/a.
1.1 · Roots of polynomial equationsLesson 2 of 15Free preview
Multiply out a(x − α)(x − β) and compare: the sum of the roots is −b/a and the product is c/a.