Add. Write the answer in descending order of the variable. (7x^3 + x + 3) + (x^3 - 2x + 3)

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

How do you solving the solution of each system using elimination?

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a