Question

P = (2x - 1)2 + ( 2y - 1)2 + (2z - 1) 2 , si: x = -2 ; y = -1 ; z = -3

Answer 1

P= (2(-2)-1)2+(2(-1)-1)2+(2(-3)-1)2
(-4-1)2+(-2-1)2+(-6-1)2
-5*2-3*2-7*2
-10-6-14
-30