Question

найдите корен уравнения (х-12)(х+2)-(х+4)(х-4)

Answer 1

${x}^{2} - 10x - 24 - {x}^{2} + 16 = 0 \\ - 10x - 8 = 0 \\ - 10x = 8 \\ x = - \frac{8}{10} = - 0.8$