1.1 · Roots of polynomial equationsLesson 11 of 15
Using a substitution: reciprocal roots
Put x = 1/y and multiply through: the coefficients come out in reverse order, and the new equation answers questions about 1/α.
Locked
Unlock the rest of Cambridge A Level Further Mathematics: Further Pure 1 (9231 Paper 1).
- Every lesson, every resource, unlocked instantly.
- Track progress and pick up where you left off.
- Free preview lessons stay readable from the outline.