Question

Calculează produsele :A = ( + 9 ) × ( + 7 ) B = ( + 6 ) × ( + 13 ) C = ( - 14 ) × ( + 4) D = ( + 21 ) × ( - 3) E = ( - 8 ) × ( + 12 ) F = ( - 16 ) × ( - 5 ) G = ( - 4) × ( - 32 ) H = ( - 4 ) × ( + 4 ) I = ( - 4 ) × ( - 4 ) J = ( + 13 ) × ( + 13 ) H = ( - 13) ) × ( - 13 ) ​

Answer 1

Explicație pas cu pas:

A=(+9)•(+7)

A=+63

B=(+6)•(+13)

B=+78

C=(-14)•(+4)

C=-56

D=(+21)•(-3)

D=-63

E=(-8)•(+12)

E=-96

F(-16)•(-5)

F=+80

G=(-4)•(-32)

G=+128

H=(-4)•(+4)

H=-16

I=(-4)•(-4)

I=+16

J=(+13)•(+13)

J=+169

H=(-13)•(-13)

H=+169