Respuesta :
[tex] \bold{ANSWER}[/tex]
On solving the following quadratic equation ,
[tex] {x}^{2} - 12x - 64 = 0[/tex]
[tex] {x}^{2} - 16x + 12x - 64 = 0[/tex]
[tex]x(x - 16) + 12(x - 16) = 0[/tex]
[tex](x + 12)(x - 16) = 0[/tex]
so,
x+12 = 0
[tex] \huge \boxed{x = -12}[/tex]
x-16 =0
[tex] \huge \boxed{x = 16}[/tex]
Here is your answer
[tex]{x}^{2}-12x-64=0[/tex]
[tex]{x}^{2}-16x+4x-64=0[/tex]
[tex]x(x-16)+4(x-16)=0[/tex]
[tex](x-16)(x+4)=0[/tex]
So,
x-16=0 or x+4=0
[tex]<b>x=16 or x=-4</b>[/tex]
HOPE IT IS USEFUL