Question

(x+2)*(x-2)=3,5*5,25


помогите плиз

Answer 1

$(x+2)(x-2)=18.375 \ x^2 - 4 = 18.375 \ x^2 = 18.375 + 4 \ x^2 = 22.375 \ x = бsqrt{22.375}$

Answer 2

не так (