Question

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Answer 1

Respuesta:

A = 2xy

B = -8b

C = -2xy

D = -2mn²

Explicación paso a paso:

A 8x + 1 = 9

1y = 1y o y

9x + y - 8 = 2xy

B 1a - 1 = 0 ( se anula )

-3b - 2 = -5b

- 5b - 3 = -8b

C 4x + 3 = 7x

- 1y + 0 = -1y o -y

7x - y - 8 = -2xy

D 3m + 1 = 4m

${n}^{2} - 3 = - 3 {n}^{2}$

$4m - 3 {n}^{2} - 3 = - 2m {n}^{2}$

espero te sirva:)