Решите 5 задании.
1) (n+5)-(n-8)
2) 3x⁴-5x+7x‎²-8x⁴+5x
3) (c³-2)² ; (2b+3)³ ; (3c³-2a²)³
4) (19+2x)-(5x-11)=25
5) (-2m⁵n‾³)‎² ; 5‎³:5 ; (3²)‾⁴:3‾¹⁰.

1) (n+5)-(n-8)=n+5-n+8=13 2) 3x⁴-5x+7x‎²-8x⁴+5x=-5x^4+7x² 3) (c³-2)² =c^6-4c³+4(2b+3)³ =8b³+36b²+54b+27(3c³-2a²)³=27c^9-54c^6a²+36c³a^4-8a^6 4) (19+2x)-(5x-11)=2519+2x-5x+11-25=03x=5x=5/3 5) (-2m⁵n‾³)‎² =4m^10n^-65‎³:5 =5²=25(3²)‾⁴:3‾¹⁰.=3^-8 : 3^-10=3²=9