Question

Rút gọn phân thức

a) \(\frac{12x^5y^2}{8x^3y^5}\)

b) \(\frac{x^2+2x+1}{5x^2+5x}\)

Answer 1

a)\(\frac{12x^5y^2}{8x^3y^5}\)

=\(\frac{3x^2}{2y^3}\)

b)\(\frac{x^2+2x+1}{5x^2+5x}\)

=\(\frac{\left(x+1\right)^2}{5x\left(x+1\right)}\)

=\(\frac{x+1}{5x}\)

t tôi nhé bn

Answer 2

\(a,\frac{12x^5y^2}{8x^3y^5}=\frac{4x^3y^2.3x^2}{4x^3y^2.2y^3}=\frac{3x^2}{2y^3}\)

\(b,\frac{x^2+2x+1}{5x^2+5x}=\frac{\left(x+1\right)^2}{5x\left(x+1\right)}=\frac{\left(x+1\right)\left(x+1\right)}{5x\left(x+1\right)}=\frac{x+1}{5x}\)

Xong rồi nhé! Chúc bạn học giỏi.