Question

Помогите пожалуйста!!!!!!!

Answer 1

127 * 48 - 31 * 89 - 31 * 38 + 127 * 83 =(127 * 48 + 127 * 83) - (31 * 89 +
 + 31 *38 ) = 127(48 + 83) - 31(89 + 38) = 127 * 131 - 31 * 127 =
= 127(131 - 31) = 127 * 100 = 12700