Question

rezolvati ecuatia (x-7) la 2 = (x-2) la a2a
$(x - 7)^2 = (x - 2) ^2$

Answer 1

(x-7)(x-7)=x la 2-7x-7x+49=x la2-14x+49

(x-2)(x-2)=x la2-2x-2x+4=x la2-4x+4

x la2-14x+49=x la2-4x+4

x la2-x la2-14x+4x=4-49

-10x=-45

x=4,5