Answer:
Step-by-step explanation:
The coefficients of x on each side of the equal sign are different, so the equation is <em>not a tautology</em>. It must have exactly one solution.
Answer:

⇒
[Factorized form]
Step-by-step explanation:
Given expression:

We need to make
the subject.
In order to do that we need to solve the expression for
in terms of
and 
We have,

Subtracting both sides by 


Taking square root both sides in order to remove square of 


The difference of squares can be factorized and written as:
[difference of squares
]
X-18 = 2 (X-25)
x-18 = 2x - 50
-18 = x - 50
32 = x
check
32-18 = 14 = 2(32-25) = 2*7
32 is the answer
Answer:

if you don't have to simplify it, it is

Step-by-step explanation:
the equation for the area of a square is

substitute 72 for a

take the square root of both sides to cancel out the square on the s


if you need it simplified, find the perfect square that makes up 72. It is 36.

take the square root of 36

Distance = 3 units .....................