HSC Stuff > HSC Mathematics Extension 1

Polynomial question

(1/1)

Mahan:
if

then find ab.

Paradoxica:
Insufficient information exists to determine the product value. Solving the radical equation by transforming it into a cubic equation yields:

{a,b} ⊂ {-1,2-√3,2+√3}

From which the pairwise products selected results in three possible values of:

-2+√3, -√3 - 2, 1

Navigation

[0] Message Index