What two numbers multiply to 64 and adds to 20

Use the function nest to evaluate p(x) = 1 + x + · · · + x50 at x = 1.00001. (use the matlab ones command to save typing.) find the error of the computation by comparing with the equivalent expression q(x) = (x51 − 1)/(x − 1).

If 20% of a number is 35, what is 50% of that number?

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are: