Solving Cubic Equations (VCE SSCE Mathematical Methods): Flashcards
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10 cards from this deck
Primary strategy for solving cubic equations
Primary strategy for solving cubic equations
Factorise the expression first
Null factor theorem
Null factor theorem
If product = 0, at least one factor must = 0
Max number of solutions a cubic equation can have
Max number of solutions a cubic equation can have
Up to three solutions
What to always check first when factorising cubics
What to always check first when factorising cubics
Common factors
Factor theorem states what about ?
Factor theorem states what about ?
is a factor of polynomial
Which values to test first using factor theorem?
Which values to test first using factor theorem?
What is grouping method in factorisation?
What is grouping method in factorisation?
Group terms in pairs to identify common factors
How many real solutions can a cubic have?
How many real solutions can a cubic have?
One, two, or three
Negative discriminant means what for quadratic factor?
Negative discriminant means what for quadratic factor?
No real solutions, can't be factorised further
Alternative terms for solutions of equations
Alternative terms for solutions of equations
Roots or zeros