What could Dave have written as the result from Step 1
11?
1
3
(
x
+
4
)
2
=
48
Step
1
x
+
4
=
±
12
Step
2
x
=
−
16
or
x
=
8
Step
3

3
1
​
(x+4)
2

x+4
x=−16
​

=48
=±12
or x=8
​

Step 1
Step 2
Step 3
​