1) 0^2 + 3^2 + (-0.7)^2 = 0 + 9 + 0.49 = 9.49
2) (6 + 4 + 0.6)^2 = 10.6^2 = 112.36
3) 1.5^2 - 0.6^2 = 2.25 - 0.36 = 1.89
4) (-1.7 - (-0.3))^2 = (-1.7 + 0.3)^2 = (-1.4)^2 = 1.96
1) 0^2 + 3^2 + (-0.7)^2 = 0 + 9 + 0.49 = 9.49
2) (6 + 4 + 0.6)^2 = 10.6^2 = 112.36
3) 1.5^2 - 0.6^2 = 2.25 - 0.36 = 1.89
4) (-1.7 - (-0.3))^2 = (-1.7 + 0.3)^2 = (-1.4)^2 = 1.96