Answer
$3\pm\sqrt 5$.
$(3\pm\sqrt 5,0)$.
Work Step by Step
Step 1. Let $f(x)=0$, we have $x^2-6x+4=0 \longrightarrow x=\frac{6\pm\sqrt {36-4(4)}}{2}=3\pm\sqrt 5$.
Step 2. The x-intercepts are $(3\pm\sqrt 5,0)$.
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 2 - Linear and Quadratic Functions - Section 2.4 Properties of Quadratic Functions - 2.4 Assess Your Understanding - Page 160: 104
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