Solve algebraically for all values of x:
8x^4-70x^3-18x^2

Is the orthocenter of a triangle on the inside ?

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

Which choice has the correct steps in graphing the solution set to the following inequality? -45_> 20x-5y