Question

Resuelve aplicando la propiedad distributiva
(2x-4)(6x-4x+3)​

Answer 1

Respuesta:

2x×(6x-4x+3)-4(6x-4x+3)

12x²-8x+6x-24x+16-12

12x²-26x+4

Answer 2

Respuesta:

a) 16x 2 – 9 – 4(9 + 4x 2 – 12x) = 3x

16x 2 – 9 – 36 – 16x 2 + 48x = 3x 8 48x – 3x = 45 8 45x = 45 8 x = 1

Solución: x = 1

b) 2x + 3(x 2 – 8x + 16) = 37 + x 2 – 9

2x + 3x 2 – 24x + 48 = 28 + x 2 8 2x 2 – 22x + 20 = 0

x 2 – 11x + 10 = 0 8 x = 11 ± 9

2 = 10

1

Soluciones: x1 = 10, x2 = 1

c) x + 3

5 – x

2 – 2x + 1

4 = 5x

4 – x

2 + 4x + 4

4

4x + 12 – 5x 2 + 10x – 5 = 25x – 5x 2 – 20x – 20

9x + 27 = 0 8 x = –3

Solución: x = –3

d) (x – 1)(x + 2) – 4(x – 3) = 12 + 2(x + 1)(x – 2)

x 2 + x – 2 – 4x + 12 = 12 + 2x 2 – 2x – 4

x 2 + x – 2 = 0 8 x = –1 ± 3

2 = 1

–2

Soluciones: x1 = 1, x2 = –2

Explicación paso a paso:

Explicación paso a paso: