Question

-3{-2[(2x3)-6(5-15)]x(2-5)-[3x(-13)-25]}

Answer 1

-3{-2[(2x3)-6(5-15)]x(2-5)-[3x(-13)-25]}

-3(-2(6-6(5-15))×(2-5)-(3×(-13)-25))

-3(-2(6-6×(-10))×(2-5)-(3×(-13)-25))

-3(-2(6-6×(-10))×(-3)-(-13)-25))

-3(-2(6-6×(-10))×(-3)-(-39-25))

-3(-2(6+60)×(-3)-(-39-25))

-3(-2(6+60)×(-3)-(-64))

-3(-2×66×(-3)-(-64))

-3(-2×66×(-3)+64)

-3(396-64)

-3×460

-1380

espero te sirva y sea de gran ayuda