Answer:
So, when
�
=
3
a=3, the value of the expression
3
6
2
−
2
(
�
2
+
4
�
)
36
2
−2(a
2
+4a) is 1254.
Explanation:
You want to evaluate the expression
3
6
2
−
2
(
�
2
+
4
�
)
36
2
−2(a
2
+4a) when
�
=
3
a=3:
Substitute the value of
�
a into the expression:
3
6
2
−
2
(
3
2
+
4
∗
3
)
36
2
−2(3
2
+4∗3)
Perform the calculations inside the parentheses:
3
6
2
−
2
(
9
+
12
)
36
2
−2(9+12)
Continue simplifying:
3
6
2
−
2
(
21
)
36
2
−2(21)
Calculate the square of 36:
1296
−
2
(
21
)
1296−2(21)
Now, multiply 2 by 21:
1296
−
42
1296−42
Finally, subtract 42 from 1296:
1254
1254
So, when
�
=
3
a=3, the value of the expression
3
6
2
−
2
(
�
2
+
4
�
)
36
2
−2(a
2
+4a) is 1254.