Question

-x(x+2)-(x-7)(x²+7x+49) преобразовать в многочлен

Answer 1

$- x(x + 2) - (x - 7)(x {}^{2} + 7x + 49) \ - x {}^{2} - 2x -(x {}^{3} - 343) \ - x {}^{2} - 2x - x {}^{3} + 343 \ - x {}^{3} - x {}^{2} - 2x + 343$