Question

por favor ayúdenme es urgente por favor Plis ​

Answer 1

Respuesta:

1. 7[2(3-2)(-5+3)]-[6+(2×4)] =

7[2×1×-2]-[6+8] =

7[2×-2]-14 =

7×-4-14 =

-28-14 = -42

2. 5[4(3-1)(-6+4)]-[7+(2×3)] =

5[4×2×-2]-[7+6] =

5[8×-2]-13 =

5×-16-13 =

-80-13 = -93

3. -7[2(7-5)(-4)2][5(-4)(4+8)] =

-7[2×2×-4×2][5×-4×12] =

-7[4×-8][-20×12] =

-7×-32×-240 =

224×-240 = -53760

4. -7[2(7-4)(-5)4][4(-3(5+8)] =

-7[2×3×-5×4][4(-3×13)] =

-7[6×-20][4×-39] =

-7×-120×-156 =

840×-156 = -131040

5. -4{-3[(4×5)-6(2-15)](3-7)-[6(-12)-21]} =

-4{-3[20-6×-13]×-4-[6×-12-21]} =

-4{-3[20+78]×-4-[-72-21]} =

-4{-3×98×-4-(-93)} =

-4{-294×-4+93} =

-4{1176+93} =

-4×1269 = -5076

Espero te sirva :)

dame coronita;)