Answer:
13.89
Step-by-step explanation:
12² + 7² = C
144 + 49 = 193
√193 = 13.89
round it if u want

You can simplify the top and bottom by 3
When you divide a variable with an exponent by a variable with an exponent, you subtract the exponents (only if the bases/variables are the same)
For example:
Since they have different variables (x and y), you can't simplify this anymore


( if the exponent happens to come out negative, you have to move the variable and the exponent to the other side of the fraction to make the exponent positive)
Ex:

SInce they all have a common factor of 4, you can divide out -4

If you follow the steps from ^^^^^^^, you should get

Area of a rectangle is lxb
(4x-3) * (2x+6) = 500
{(4x * 2x) + (4x * 6)} + {( -3 * 2x) + (-3 * 6)} - multiplying the factors
{8x^2 + 24x} + {-6x + -18}
8x^2 + 24x -6x -18 - removing the brackets
8x^2 +15x -18
Hope you found the answer helpful