sstrike's answer to H's Secondary 2 Maths Singapore question.
for (c-ii)
The solutions are the intersection points in btw curve (-x²+3x+5) and straight line (y=3 green)
so the solution is an estimated value, instead of the accurate ans based on the QE formula.
The solutions are the intersection points in btw curve (-x²+3x+5) and straight line (y=3 green)
so the solution is an estimated value, instead of the accurate ans based on the QE formula.
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