Respuesta :
Answer: look at the picture
Step-by-step explanation: Hope this help :D

Answer:
(x-7)(x+9)
Step-by-step explanation:
[tex]x^2-8x-63=-10x[/tex]
Add 10x,
[tex]x^2+2x-63=0[/tex]
Factor:
[tex]x^2+9x-7x-63=0[/tex]
[tex]x(x+9)-7(x+9)=0[/tex]
[tex](x-7)(x+9)=0[/tex]
X-Intercepts:
[tex]x-7=0[/tex]
[tex]x=7[/tex]
[tex]x+9=0[/tex]
[tex]x=-9[/tex]