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