Answer:
x=-36
Step-by-step explanation:
Add the 7/2x +1/2x to be 8/2x which means that it'll be 4x=18=9/2
then subtract 9/2x on both sides so itll be

-9/2x -9/2x
because if you do 8/2-9/2 it's -1/2
then multiply the reciprocal to both sides so

which then cancels out -1/2 and makes it
x=-36
Answer:


Step-by-step explanation:
The triangle is a 30-60-90 right triangle.
The ratio of the lengths of the sides is:

The order of the sides in the ratio above is
short leg : long leg : hypotenuse
The long leg is sqrt(3) times the length of the short leg.




The hypotenuse is twice the length of the short leg.


3x(9x² + 11x - 5) + 2(2x³ + 11x - 5x²) - 5x² + 8
Simplify.
27x³ + 33x² - 15x + 4x³ + 22x - 10x² - 5x² + 8
Add like terms.
(27x³ + 4x³) + (33x² - 10x²) + (-15x + 22x) + 8
Simplify.
31x³ + 23x² - 7x + 8
~Hope I helped!~
Answer:

Step-by-step explanation:
we have

we know that
