which of the following is equal to the rational expression when x≠-6? x^2-36/x+6 a) x+6 b) x-6 c) 1/x-6 d) x^2-6

answer: 21$

step-by-step explanation:

$42 / $14 = 3   (ratio 3: 1)

$7 x 3 = $21

x = 25

step-by-step explanation:

a^2+b^2=c^2

7^2+24^2=c^2

49+576=625

sqrt625=25

x=25

3 is greater then both of those numbers