Question

ayuda plis es para hoyyyy es de matemáticas​

Answer 1

(-8)(+9)= -72

(+13)(+5)=65

(-12)(+3)=36

(-4)(-7)=28

(+7)(-8)= -56

(-51)(-16)=876

(+37)(-48)= -7776

(-65)(+7)= -455

(+26)(-9)= -234

(-23)(-12)=276