What is the simplest form of the radical expression?

- (7 + √10) / 3.

Step-by-step explanation:

You simplify this by multiplying the numerator and denominator by the conjugate of the denominator which, in this case, is √2 + √5.

(√2 + √5)(√2 + √5)         2 + 2√10 + 5            7 + 2√10

=     =        

(√2 - √5)(√2 + √5)                 2 - 5                        -3

Answer is - (7 + √10) / 3.

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.