77-27= 50 so when you add both it add up to 77 ,
50 is the answer
X^2 + 8x + 16 =
(x + 4)(x + 4) or (x + 4)^2
Answer: distance from earth to moon is 4x10^5= 4,000,000
The distance from Earth to Mars is about 5x10^7= 50,000,000.
Step-by-step explanation:
