Answer:
+25
Step-by-step explanation:
(x+5)²=x²+10x+25
It would be written as a fraction to make the exponent negative put it over one : 1/7^4
Xy=18
y=2x
y = 18/x
y = y
2x = 18/x
2x(x) = 18(1)
2x^2 = 18
x^2 = 18/2
x^2 = 9
so x = square root of 9 = 3
x = 3.
Answer:
13
Step-by-step explanation:
