2.1-2.5 · Quadratic functionsLesson 2 of 15Free preview
Solving quadratic equations using the formula
The formula solves every quadratic, even one that does not factorise. Give exact surds or 3 s.f.
2.1-2.5 · Quadratic functionsLesson 2 of 15Free preview
The formula solves every quadratic, even one that does not factorise. Give exact surds or 3 s.f.