Question

The area of a circle is given by the expression-
(πx² + 10πx + 25π)
Find the radius of the circle.​

Answer 1

Answer:

take out π common and then change rhs into whole square form

Answer 2

GIVEN :

• Expression — πx² + 10πx + 25π (CIRCLE)

TO FIND :

• Radius of a circle = ?

Step - by - step explaination :

=> Area of circle = πr²

=> πr² = π (x² + 10x + 25)

=> r² = (x²) + 2(5) x + (5)²

=> r² = (x+5)²

=> r = (x+5)

Hence, radius of circle = (x+5)