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(x – 2)2 = x 2m) 3 · (2x – 6) – [(x – (3x – 8) + 2) – 1] = 2 – (3 – 2x)n) (x – 2)2 = x2ñ) x · (x + 4) = x2 + 8?

(x – 2)2 = x 2 m) 3 · (2x – 6) – [(x – (3x – 8) + 2) – 1] = 2 – (3 – 2x) n) (x – 2)2 = x 2 ñ) x · (x + 4) = x 2 + 8.

Mejor respuesta

Luryx999
3

1) (x - 2)² = x²

(x - 2)(x - 2) = x²

x² - 2x - 2x + 4 = x² - 4x + 4 = 0 - 4x = - 4

x = - 4 / - 4

x = 1

2) 3(2x - 6) - [(x - (3x - 8) + 2) - 1] = 2 - (3 - 2x)

6x - 18 - [x - 3x + 8 + 2 - 1] = 2 - 3 + 2x

6x - 18 - [ - 2x + 9] = - 1 + 2x

6x - 18 + 2x - 9 = - 1 + 2x

8x - 27 = - 1 + 2x

8x - 2x = - 1 + 27

6x = 26

x = 26 / 6

x = 13 / 2.