Question

x-[x-{x²-(2x-x²)}+x-(-x²)]

Answer 1

X - [ x - { x² -( 2x - x² ) } + x - (-x²)]
x-    [ x - { x² - 2x + x²} + x + x²]
x - [ x - 2x² + 2x + x + x²]
x -[ 4x - x²]
x - 4x + x²
-3x + x²

Answer 2

Respuesta:

arriba

Explicación paso a paso: