Question

(2x-1)(2x+1)=2(x-3)²+x(2x-3)

Answer 1

Ответ:

$x = \frac{19}{15}$

удачки!!!

Объяснение:

$(2x - 1)(2x + 1) = 2(x - 3 {)}^{2} + x(2x - 3) \\ 4 {x}^{2} - 1 = 2( {x}^{2} - 6x + 9) + 2 {x}^{2} - 3x \\ 4 {x}^{2} - 1 = 2 {x}^{2} - 12x + 18 + 2 {x}^{2} - 3x \\ 4 {x}^{2} - 2 {x}^{2} + 12x - 2 {x}^{2} + 3x = 18 + 1 \\ 15x = 19 \\ x = \frac{19}{15}$

Answer 2

Ответ:

Объяснение:4x²+2x-2x-1=2(x²-6x+9)+2x²-3x

4x²-1=2x²-12x+18+2x²-3x

4x²-1=4x²-15x+18

15x=19

x=19/15