Question

(+8x) - (-3x) =
(-5x) - (-11x) =
(-2y) + (-3y) =
(-2m) + (-m) =
(-6x). (+3x) =​

Answer 1

Explicação passo-a-passo:

$( + 8x) - ( - 3x) \\ = ( + 8x) + ( + 3x) \\ = ( + 11x) \\ ( - 5x) - ( - 11x) \\ = ( - 5x) + ( + 11x) \\ = ( + 6x) \\ ( - 2y) + ( - 3y) \\ = ( - 5y) \\ ( - 2m) + ( - m) \\ = ( - 3m) \\ ( - 6x) \times ( + 3x) \\ = ( - 18 {x}^{2} )$