Answer:
Step 5
Explanation:
Given the equation:
[tex]x^2-6x-8=0[/tex]
On examining Richard's solution, the mistake Richard made is shown below:
In the second part of step 5 indicated above, the square root of 4 was erroneously written as 2i.
The error is fixed below:
[tex]\begin{gathered} \text{Step 5: }x=\frac{6+2}{2}\text{ and }x=\frac{6-2}{2} \\ \text{Step 6: }x=4\text{ and }x=2 \end{gathered}[/tex]
