Question

4^2 + 3^2 - 9^2 qual è o calculo

Answer 1

4^2= 4.4= 16
3^2= 3.3= 9
9^2= 9.9= 81
Logo, 16+9-81=
16+9=25
25-81= -56

Answer 2

$4 { }^{2} + 3 {}^{2} - 9 {}^{2} = 56$
4^2=16
3^2=9
9^2=81

16+9=25
25-81=-56