Question

(2×2-9×+2)+(3×2+7×-1) = b)
(5×2+5×-8)+(-2×2+3×-2) = c)
(3×-6y+4)+(4×+2y-2) = d)
(5×2-7×+2)-(2×2+7×-1) =​

Answer 1

Explicação passo-a-passo:

(2×2-9×+2)+(3×2+7×-1) = b)

(5×2+5×-8)+(-2×2+3×-2) = c)

(3×-6y+4)+(4×+2y-2) = d)

(5×2-7×+2)-(2×2+7×-1) =2.000 19