А) 125-(5-3x)(25+15x+9x²) при x =-4 б)127+(5c - вопрос №77273911255325159412753251591 от aekawahar 03.05.2023 09:31

Question

Математика: А) 125-(5-3x)(25+15x+9x²) при x =-4 б)127+(5c - 3)(25c²+15c+9) при c=-(1 ) и (5)

aekawahar · Answer

125-(5-3x)(25+15x+9x²) =115-(125-27x³)=115-125+27x³=27x³-10x=-427*(-4)³-10=27*(-64)-10=-1738127+(5c - 3)(25c²+15c+9) =127+125c³-27=125c³+100c=-1125*(-1)³+100=125*(-1)+100=-25c=5125*(5³)+100=125²+100=15725...