Question 0118

Equations and Inequalities
2018 Paper 1 Question 4 Variant

Question

(i)
Find the exact roots of the equation
x2+9x3=32x|x^2 + 9 x - 3| = 3 - 2 x
[4]
(ii)
On the same axes, sketch the curves with equations y=x2+9x3{y=|x^2 + 9 x - 3|} and y=32x.{y=3 - 2 x.}
Hence solve the inequality
x2+9x3<32x.|x^2 + 9 x - 3| < 3 - 2 x.
[4]

Answer