Question

Решить уравнение:
(х+3)*(х-4)-(х-7)*(х-2)= -2

Answer 1

${x}^{2} - 4x + 3x - 12 - \\ - {x}^{2} + 2x + 7x - 14 = - 2 \\ \\ 8x - 26 = - 2 \\ 8x = - 2 + 26 \\ 8x = 24 \\ x = 24 \div 8 \\ x = 3$