Assuming "i" is an imaginary unit:
A^2+b^2=(a+b) (a-b)
Let a^2=x^2 then a^2= x^2
Let b^2=63 them b^2= 64
b=8
Answer: (x+8) (x-8)
Is not because 9 - 5 = 4; 15 - 9 = 6; 4 is not equal with 6!
Answer:
The translation is 1 unit to the left and 5 units down
Step-by-step explanation:
The explanation is given below;
Given that
The transform function is 
It can be seen that
The parent function is

After that
The parent function would be transform 1 units to the left 
And afterwards it would be transform in 5 units down 
So
The parent function
would be translate in 1 unit to the left and 5 units down
I don't think there's any answer. It says that the absolute value of x-7 is negative 2, but an absolute value is always positive. So there's no value for x that can make the equation a true statement.