Question 0107a

Equations and Inequalities
2007 Paper 1 Question 1 Variant

Question

Show that
4x2−9x−40x2−6x−16−3=x2+9x+8x2−6x−16.\frac{ 4 x^2 - 9 x - 40 }{ x^2 - 6 x - 16 } - 3=\frac{ x^2 + 9 x + 8 }{ x^2 - 6 x - 16 }.
Hence, without using a calculator, solve the inequality
4x2−9x−40x2−6x−16>3\frac{ 4 x^2 - 9 x - 40 }{ x^2 - 6 x - 16 } > 3
[5]

Answer