Question

calcule
a)(+2×).(-7×2)=
b)(-6×).(+5×)=
c)(+2×).(+3×)=
d)(-9n).(+n)=
e) (-4×2).(+3×2)=
f)(-8y).(5y)=
g)(+3×2).(+7×3)=
h)(8y).(-3x)=
i)(-2×).(-3y)=
j)(+3×).(-5y)=
k)(-4×y).(-2×)=

​

Answer 1

Resposta:

27

Explicação passo-a-passo:

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