TÌM X, BIẾTE) 2X3(2X – 3) – X2(4X2 – 6X + 2) =A) 36X2 – 49 = 0B...
Bài 3. Tìm x, biết
e) 2x
3
(2x – 3) – x
2
(4x
2
– 6x + 2) =
a) 36x
2
– 49 = 0
b) (x – 1)(x + 2) = x + 2
0
f) (x – 2)
2
– (x + 3)
2
= 5 + 4(x + 1)
c) x
2
(x + 1) + 2x(x + 1) = 0
d) x(2x – 3) – 2(3 – 2x) = 0