They are equally spaced so all the circles share the same center point.
Consider the form x^2+bx+c. Find a pair of integers whose product is c and whose sum is b. In this case, whose product is -50 and whose sum is -5.
-10,5
Write the factored form using these integers
(x-10) (x+5)
<h2>
The value of r = 
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Step-by-step explanation:
We have,
U = F(r + B)
To find, the value of r = ?
∴ U = F(r + B)
Dividing both sides by F, we get

⇒
= r + B
⇒ r + B =
⇒ r =
- B
⇒ r = 
∴ The value of r =
Step-by-step explanation:
x + y = 9. => 2x + 2y = 18.
2x + 2y = 18
- (2x - 3y = -12)
=> 5y = 30, y = 6.
Therefore x + (6) = 9, x = 3.
The solution is x = 3 and y = 6.