Given the function f(x)=-\frac{1}{2}x-2x^2f(x)=− 2
1

x−2x
2
, then what is f(x+2)f(x+2) as a simplified polynomial?

The verbal translation for the difference of m and 7 increased by 15

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.