Edexcel C3 2010 June — Question 8

Exam BoardEdexcel
ModuleC3 (Core Mathematics 3)
Year2010
SessionJune
TopicPolynomial Division & Manipulation

8. (a) Simplify fully $$\frac { 2 x ^ { 2 } + 9 x - 5 } { x ^ { 2 } + 2 x - 15 }$$ Given that $$\ln \left( 2 x ^ { 2 } + 9 x - 5 \right) = 1 + \ln \left( x ^ { 2 } + 2 x - 15 \right) , \quad x \neq - 5$$ (b) find \(x\) in terms of e.