Question

(6x-4)(x-4)=7(x²-4x-12) ​

Answer 1

Объяснение:

$(6x - 4)(x - 4) = 7( {x}^{2} - 4x - 12)$

$6 {x}^{2} - 24x - 4x + 16 = 7 {x}^{2} - 28x - 84$

$6 {x}^{2} - 28x + 16 = 7 {x}^{2} - 28x - 84$

$6 {x}^{2} + 16 = 7 {x}^{2} - 84$

$6 {x}^{2} - 7 {x}^{2} = - 84 - 16$

$- {x}^{2} = - 100$

$x = 10$

$x = - 10$

Answer 2

Решение на фотографии!