I dont understand pls help pls

m∠CBD=68

Step-by-step explanation:

BA ⊥ BD

m∠ABD=90°

So  m∠CBD+m∠ABC=90

(4x+52)+(8x-10)=90

12x=48

   x=4

m∠CBD= 4(4)+52

             =68

hope this helps

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

the answer is d on edge

step-by-step explanation: