Question

Find as many errors as you can and explain each one of them.

Answer 1

The mistake part is shown

The expression (-4)² was not properly simplified

This is done as follows

`\begin{gathered} x=(-4\pm√((-4)^2-4(3)(20)))/(2(3)) \\ x=(-4\pm√(16-240))/(6) \end{gathered}`

The next error is the addition

`x=(-4\pm√(-224))/(6)`