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Question 0107a
Equations and Inequalities
2007 Paper 1 Question 1 Variant
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Show that
2
x
2
+
25
x
+
71
x
2
+
9
x
+
8
−
1
=
x
2
+
16
x
+
63
x
2
+
9
x
+
8
.
\frac{ 2 x^2 + 25 x + 71 }{ x^2 + 9 x + 8 } - 1=\frac{ x^2 + 16 x + 63 }{ x^2 + 9 x + 8 }.
x
2
+
9
x
+
8
2
x
2
+
25
x
+
71
−
1
=
x
2
+
9
x
+
8
x
2
+
16
x
+
63
.
Hence, without using a calculator, solve the inequality
2
x
2
+
25
x
+
71
x
2
+
9
x
+
8
<
1
\frac{ 2 x^2 + 25 x + 71 }{ x^2 + 9 x + 8 } < 1
x
2
+
9
x
+
8
2
x
2
+
25
x
+
71
<
1
[5]
Answer
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