Which best explains why this triangle is or is not a right triangle?

Acompound inequality is graphed, and its graph consists of all real numbers. which open scentence could have resulted in this solution set r> 3 or r< -2. r< 3 or r< -2. r> 3 or r> -2. r< 3 or r> -2 plz asap

What are the solutions of the equation x4 – 5x2 – 14 = 0? use factoring to solve. someone !

How many and of which kind of roots does the equation f(x)=2x^4−9x^3+17x^2−16x+6 have?