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It is only worth two marks how would you solve this without doing in to the factor theorem etc.
I know ( x - 1/2 ) is a factor because it tells you in the question at the point x = 1/2 has a tangent... How would you work out the other two brackets?
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C1 - Factorising cubics watch
- Thread Starter
- 08-04-2013 19:30
- Community Assistant
- 08-04-2013 19:35
You are supposed to sketch this.
Sketch the cubic and show the tangent.
Note that the tangent crosses the cubic one more time.
What does that tell you?