Respuesta :

KyanLin

Answer:

k=13

Step-by-step explanation:

A straight line is 180 degrees, so 4k-7+3k+6=180-90=90

7k-1=90, k=13

abdulrahman090078601

Answer:

12k^2+3k-42

Step-by-step explanation:

if we multiply both values (4k-7)(3k+6) like that can gave is 12k^2+3k-42