Question 0118

Equations and Inequalities
2018 Paper 1 Question 4 Variant

Question

(i)
Find the exact roots of the equation
x2+6x2=2x|x^2 + 6 x - 2| = 2 - x
[4]
(ii)
On the same axes, sketch the curves with equations y=x2+6x2{y=|x^2 + 6 x - 2|} and y=2x.{y=2 - x.}
Hence solve the inequality
x2+6x2<2x.|x^2 + 6 x - 2| < 2 - x.
[4]

Answer