Question

(6x+5)(6x-5)=(9x+6)(4x-8)

Answer 1

Respuesta:

$x = \frac{ - 23}{48}$

Explicación paso a paso:

$(6x + 5)(6x - 5) = (9x + 6)(4x - 8) \\ 36 {x}^{2} - 25 = 36 {x}^{2} - 48x - 48 \\ - (36 {x}^{2} - 48x - 48) + 36 {x}^{2} - 25 = 0 \\ - 36 {x}^{2} + 48x + 48 + 36 {x}^{2} - 25 = 0 \\ 36 {x}^{2} - 36 {x}^{2} + 48x + 48 - 25 = 0 \\ 48x + 23 = 0 \\ 48x = - 23 \\ x = \frac{ - 23}{48}$