Question

Решите уравнение (х-10)^2=(1-х)^2

Answer 1

х-10=1-х ⇔ 2х=11 ⇔ х=5,5

Answer 2

$(x-10) ^{2} =(1-x) ^{2} \ x^{2} +100-20x=1+ x^{2} -2x \ -20x+2x=1-100 \ -18x=-99\x= frac{-99}{-18} \ x=5.5$