Tìm x, biết:a) 2(5x-8)-3(4x-5) = 4(3x-4) + 11;b)
2
x
(
6
x
-
2
x
2
)
+
3
x
2
(
x
-
4
)
= 8;c)
2
(
x
3
-
1
)
-
2
x
2
(
x
+
2
x
4
)
+
(
4
x
5
+
4
)
x
= 6;d)(2x)2(4x-2)-(x3 -8x2) =...
Đọc tiếp
Tìm x, biết:
a) 2(5x-8)-3(4x-5) = 4(3x-4) + 11;
b) 2 x ( 6 x - 2 x 2 ) + 3 x 2 ( x - 4 ) = 8;
c) 2 ( x 3 - 1 ) - 2 x 2 ( x + 2 x 4 ) + ( 4 x 5 + 4 ) x = 6;
d)(2x)2(4x-2)-(x3 -8x2) = 15.
a) x = 2 7 b) x = 2.
c) x = 2 d) x = 1.