Simplify the rational expression x^2-4/x^2+5x+6. state any restrictions on the variable.

The correct answer is option B.

Step-by-step explanation:

The given rational expression is:

Factor the numerator and the denominator:

Factor the numerator using difference of two squares and the denominator using factorization by grouping.

This function is defined if and only if the denominator is not zero.

That is: (x+3)(x+2)≠0.

x≠-2,x≠-3

We simplify now to obtain:

The correct choice is the second option.

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.