Question

найдите корни уравнения

Answer 1

$(x-6)^2=(7-x)^2 \ left { {{x-6=7-x} atop {x-6=x-7}} right. \ 2x=13 \ x=6,5$

Answer 2

(6-х)^2=(7-х)^2
36-12х+x^2=49-14х+x^2
2x=49-36=13
x=6,5