Question

Pleas Help me
N-17.48

Answer 1

Ответ:

2

Объяснение:

^2+b^2+c^2+2*(ab-ac-bc)=(a+b-c)^2

a^2+b^2+c^2=26

ab-bc-ac = -11

(a+b-c)^2 = 26-22 = 4

a+b-c= 2