What is the square of 225-x = 169 - (196-28x + x square) x equal to?

What is the square of 225-x = 169 - (196-28x + x square) x equal to?


=>225=169-196+28x
=>28x=252
x=9



196 (a + b) quadratic-169 (a-b) quadratic
(x + y + Z) quadratic -- (X-Y + Z) quadratic = ()


196=14×14,169=13×13
Using the square difference formula
196 (a + b) quadratic - 169 (a-b) quadratic = (27a + b) (a + 27b)
The second question is the same
The answer is 4Y (x + Z)



The square of a number equals 196. What is the number?


14