Ответ:

1. а)48p^3q^4/36p^2q^3=8p*q\6=4p*q\3

б)x^2+6x+9/x^2-9=x+3\(x-3)*(x+3)=1\x-3

x^2+6x+9=0

D=36-4*9=0

x=-6\2=-3  

2. А)10х²/9у²=40х³/36ху²

8/12ху=24у/36ху²

Б)(b+2)/4b=(b+2)(b-2)/4b(b-2)=(b²-4)/4b²-8b

(4b+5)/(4b-8)=(4b+5)/4(b-2)=(4b+5)b/4b(b-2)=(4b²+5b)/(4b²-8b) В)

2c*(d - c ) / (d^2 - c^2 )=( 2CD - 2C^2 ) / ( D^2 - C^2 )

3D* ( D + C) / ( D^2 - C^2 ) = ( 3D^2 + 3CD ) / ( D^2 - C^2 )

Г)

[ 5T*( T - 5) ] / [ (T^2 - 25)*( T - 5) ]

[ ( T + 5)^2 ] / [ (T^2 - 25)*( T - 5 ) ]  

а)

2c*(d - c ) / (d^2 - c^2 )=( 2CD - 2C^2 ) / ( D^2 - C^2 )

3D* ( D + C) / ( D^2 - C^2 ) = ( 3D^2 + 3CD ) / ( D^2 - C^2 )

Б)

[ 5T*( T - 5) ] / [ (T^2 - 25)*( T - 5) ]

[ ( T + 5)^2 ] / [ (T^2 - 25)*( T - 5 ) ]

Пошаговое объяснение: