Rút gọn các phân thức sau
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Bài 12 Rút gọn các phân thức sau
a) \(\frac{x + 2}{2x + 4}\)
b) \(\frac{x^2 + 1x + 4}{2x + 2}\)
c) \(\frac{(1 - x)(x - 2)}{x + 2}\)
d) \(\frac{x^2 - y^2}{x + y}\)
e) \(\frac{3x - 6}{6x + 12 - 8}\)
f) \(\frac{2x^2y}{3xy^2}\)
g) \(\frac{3x^2y - y^3}{2(x - y)}\)
h) \(\frac{3x^2 - y^2}{2(x - y)}\)
i) \(\frac{3x^3y + 4xy}{6x + 5y}\)
j) \(-\frac{3x^3 - 6x}{4 - x^2}\)
k) \(\frac{8x^5}{4xy(x + 1)}\)
l) \(-\frac{9x - 18x}{3 \cdot x^2 - 4}\)
m) \(\frac{9x^2 - 18x}{3 \cdot x^2 - 4}\)
n) \(\frac{x^2}{(x - 3)(x^2 + x)}\)
Bài 12 Rút gọn các phân thức sau
a) \(\frac{x + 2}{2x + 4}\)
b) \(\frac{x^2 + 1x + 4}{2x + 2}\)
c) \(\frac{(1 - x)(x - 2)}{x + 2}\)
d) \(\frac{x^2 - y^2}{x + y}\)
e) \(\frac{3x - 6}{6x + 12 - 8}\)
f) \(\frac{2x^2y}{3xy^2}\)
g) \(\frac{3x^2y - y^3}{2(x - y)}\)
h) \(\frac{3x^2 - y^2}{2(x - y)}\)
i) \(\frac{3x^3y + 4xy}{6x + 5y}\)
j) \(-\frac{3x^3 - 6x}{4 - x^2}\)
k) \(\frac{8x^5}{4xy(x + 1)}\)
l) \(-\frac{9x - 18x}{3 \cdot x^2 - 4}\)
m) \(\frac{9x^2 - 18x}{3 \cdot x^2 - 4}\)
n) \(\frac{x^2}{(x - 3)(x^2 + x)}\)