AM-1474
Factorising and solving cubics
A Math · Secondary 4 · Hard · Factorising and solving cubics
The cubic equation is given.
(a) Show that is a root of the equation.
(b) Hence solve the equation completely.
What is the other positive root of the equation?
(a) Show that is a root of the equation.
(b) Hence solve the equation completely.
What is the other positive root of the equation?
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