angelinad02
23.08.2019 •
Mathematics
Factor completely: 3x2 – 24x + 36 a. (3x – 2)(x – 18) b. 3(x – 2)(x – 6) c. (x – 2)(x – 6) d. 2(x – 3)(x – 12)
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Ответ:
Ответ:
31+4
21
=28+3+2
4×21
=(
28
)
2
+(
3
)
2
+2
28
×
3
=(
28
+
3
)
2
Using (a+b)
2
=a
2
+b
2
+2ab
31+4
21
=(
28
+
3
)
2
∴
31+4
21
=(
28
+
3
)
The square root of
31+4
21
is (
28
+
3
)