C and D because I just know
Answer:
solve what???
Step-by-step explanation:
That's a bit of a nasty. Where ever you see (x^2 + 6) you put in p.
p^2 - 21 = 4(x^2 + 6)
p^2 - 21 = 4p
p^2 - 4p - 21 = 0
A <<<< answer.
Here is the solution which make everything clear.
As you can see, according to given AM=ZDand M=angleDMD=MD is the common one. Due to to this, you can recognize Side-Angle-Side and get the answer : <span>C. SAS
Do hope it will help you!</span>