efectuati in 2 moduri:a)(-5-3)x(+4)=
b) (7-5)x(-6)=
c) (-7-3)x(+5-6)=
Va roooooggg.....

a)(-5 -3)×(4) = -8 × 4 = -32
(-5 -3)×4 = -5 × 4 -3 × 4 = -20 - 12 = -32
b)(7-5)×(-6)= 2 × -6 = -12
(7-5)×(-6) = 7×(-6) - 5×(-6) = -42 -(-30) = -42 + 30 = -12
c)(-7-3)×(5-6) = -10 × (-1) = 10
(-7-3)×(5-6) = -7×5 +7×6 - 3 × 5 + 3 × 6 = -35 + 42 - 15 + 18 = 7 + 3 = 10