Câu hỏi của thuy nguyen

Question

giúp mik với mn

An Nhiên · Accepted Answer

$(
2
x
−
1
)
(
3
x
+
2
)
(
3
−
x
)$$=
(
2
x
−
1
)
(
9
x
−
3
x
^2
+
6
−
2
x
)$$=
(
2
x
−
1
)
(
−
3
x
^2
−
7
x
+
6
)$$=
−
6
x^3−
14
x^2+
12
x
+
3
x^2+
7
x
−
6$$=
−
6
x
^3−
11
x^2+
19
x
−
6$Câu trả lời: $(
2
x
−
1
)
(
3
x
+
2
)
(
3
−
x
)$$=
(
2
x
−
1
)
(
9
x
−
3
x
^2
+
6
−
2
x
)$$=
(
2
x
−
1
)
(
−
3
x
^2
−
7
x
+
6
)$$=
−
6
x^3−
14
x^2+
12
x
+
3
x^2+
7
x
−
6$$=
−
6
x
^3−
11
x^2+
19
x
−
6$

⭐Hannie⭐ · Answer

$= (6x^2+4x-3x-2)(3-x)$$=(6x^2 + x - 2 )(3-x)$$=18x^2 +3x -6 -6x^3 -x^2 + 2x$$= -6x^3 + 17x^2 + 5x - 6 $Câu trả lời: $= (6x^2+4x-3x-2)(3-x)$$=(6x^2 + x - 2 )(3-x)$$=18x^2 +3x -6 -6x^3 -x^2 + 2x$$= -6x^3 + 17x^2 + 5x - 6 $

Lê Loan · Answer

tham khảo= (2x - 1) (9x - 3x2 + 6 - 2x)= (2x - 1) (-3x2 - 7x + 6)= -6x3 - 14x2 + 12x + 3x2 + 7x - 6= -6x3 + 17x2 + 5x -6Câu trả lời: tham khảo= (2x - 1) (9x - 3x2 + 6 - 2x)= (2x - 1) (-3x2 - 7x + 6)= -6x3 - 14x2 + 12x + 3x2 + 7x - 6= -6x3 + 17x2 + 5x -6

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