If the algebraic formula x2 + kxy + Y2 is a complete square, then the value of K is
+-2
25 times the square of (x + 2) minus 36 = 0, how much is x?
The square of (X-2) - 10 (X-2) + 25 = 0
The square of (X-2) - 10 (X-2) + 25 = 0
(x-2-5)²=0
(x-7)²=0
x=7