e) (x – 1)(2x + 7)(x 2 + 2) = 0
f) (4x – 10)(24 + 5x) = 0
g) (3,5 – 7x)(0,1x + 2,3) = 0
h) (5x + 2)(x – 7) = 0
i) 15(x + 9)(x – 3) (x + 21) = 0
j) (x 2 + 1)(x 2 – 4x + 4) =0
Bài 2:
a) (3x + 2)(x 2 – 1) = (9x 2 – 4)(x + 1)
b)x(x + 3)(x – 3) – (x + 2)(x 2 – 2x + 4) = 0
c) 2x(x – 3) + 5(x – 3) = 0
d) (3x – 1)(x 2 + 2) = (3x – 1)(7x – 10)
e) (x + 2)(3 – 4x) = x 2 + 4x + 4
giải chi tiết hộ mk nhá(cảm ơn)
Loga
Sinh Học lớp 12
