Làm tính nhân:
a)
x
2
(
5
x
3
−
x
−
1...
![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 30.10.2021 22:30, jujusmith2022
Làm tính nhân:
a)
x
2
(
5
x
3
−
x
−
1
2
)
;
b)
(
3
x
y
−
x
2
+
y
)
2
3
x
2
y
;
c)
(
4
x
3
−
5
x
y
+
2
x
)
(
−
1
2
x
y
)
.
![answer](/tpl/images/cats/otvet.png)
Answers: 2
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