Реши задание на изображении

1. а) \(\displaystyle \frac{15p^3q^6}{25p^7q^2}=\frac{3q^4}{5p^4}\).

б) \(\displaystyle \frac{9k^8}{k^4+2k^5}=\frac{9k^4}{2k+1}\).

в) \(\displaystyle \frac{64x^2-25y^2}{16y-10x}=\frac{(8x-5y)(8x+5y)}{2(8y-5x)}\) — не сокращается.

2. а) \(\displaystyle \frac{17b^2+7b-12}{4b^2}\).

б) \(\displaystyle \frac{6(2m-n)-6(n+2m)}{(n+2m)(2m-n)} =\frac{12n}{n^2-4m^2}\).

в) \(\displaystyle \frac{10e-(10e+3)}{e(e-5)} =-\frac{3}{e(e-5)}\).

3. \[ 8s-\frac{5t}{4s}-8s=-\frac{5t}{4s} =-\frac45=-0{,}8. \]

4. \[ \frac{3}{2y-5}-\frac1y+\frac{4y+25}{25-4y^2} =\frac{2y^2+10y-25}{y(25-4y^2)}. \]

5. \[ \frac{(2c-2d)^2}{32} =\frac{[2(c-d)]^2}{32} =\frac{8^2}{32}=2. \]