<h2>
Hello!</h2>
The answers are:
a) 
b) 
<h2>Why?</h2>
First, we need to know that for this case:

So,


We must add
to the expression in order to form a perfect square trinomial,

Writing the trinomial as a binomial square:

Have a nice day!
let the number be xy then
x + y = 12
y - x = 2 ( because y > x)
adding we get 2y = 14 so y = 7
and x = 12 - 7 = 5
So the number is 57.
Answer:
what how do you even do this
Answer:
Step-by-step explanation:
To do pythagoras theorem
You apply the rules
Which state that,in right angled triangle the square of hypotenus is equal to sum of the square of the other two side. That is
hyp^2=opp^2+adj^2
Well if its fora circle it would be r ( radios, Half of the Diameter) divided by 9