x^2-9-(x-16)
x^2-9-x+16
x^2+7-x
ответ:х^2-х+7
(x+3)(x-3)-(x-4)²=x²-9-(x²-8x+16)=x²-9-x²+8x-16= -25+8x
x^2-9-(x-16)
x^2-9-x+16
x^2+7-x
ответ:х^2-х+7
(x+3)(x-3)-(x-4)²=x²-9-(x²-8x+16)=x²-9-x²+8x-16= -25+8x