Question

Calcule

4 2+3 2+2 2 +1 2 =?

(-4)2+(-3)2+(-2)2+(-1)2=?

Answer 1

Resposta:

4.2+3 2+2 2 +1 2 =?

8 + 6 + 4 +2 = 20

(-4)2+(-3)2+(-2)2+(-1)2=?

(-8) + (-6) + (-4) + (-2) = -20