What is the difference? (2x+5)/(x^2-+5)/x^3-9x)- (x+1)/x^2-9)

a. (x+5)(x+2)/(x^3-9x)
b. (x+5)(x+4)/(x^3-9x)
c. (-2x+11)/(x^3-12x-9)
d. 3(x+2)/(x^2-3x)

Option A is correct  

Explanation:

Given equation

will become as below after taking out the lcm x(x-3)(x+3)

after simplifying

we will get

After further simplification we will get

On more simplification we will get

finally after simplification we will get

which will lead to the final result

answer

explanation

the area of a circle is calculated using the formula

or

we can use any of the above formulae to calculate the required. preferably, let us use the latter since the diameter is

we substitute the diameter into the formula to get:

this is the exact value for the area of the circle.

the correct answer is a

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step-by-step explanation: