5x-3<2(x+3)
5x-3<2x+6
5x-2x<6+3
3x<9
x<9/3
x<3
x∈(-бесконечности; 3)
А) =4с
б)= -6ху во второй степени!
При делении степени вычитаешь!!
14¹⁰ + 14² + 196⁶ - 183² =
= 14¹⁰ + (14²)⁶ + (14² - 183²) =
= 14¹⁰ + 14¹² - (183² - 14² ) =
= 14¹⁰ * 1 + 14¹⁰ * 14² - (183 - 14)(183 + 14) =
= 14¹⁰ ( 1 + 14²) - 169 * 197 =
= 14¹⁰ * ( 1 + 196) - 169 * 197 =
= 14¹⁰ * 197 - 169 * 197 =
= 197 * ( 14¹⁰ - 169 ) =
= 197 * (14¹⁰ - 13² )