One root of f(x)=x^3+10x^2+25x-250 is x=-10. what are all the roots of the function? use the remainder theorem.
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If f(x)= 3x+6 which of the following is the inverse of f(x)

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

How to do this , and can some one explain