X + Y is equal to 3 X square + Y square is equal to 5 then xy is

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.

What expression is equivalent to (2x-1)(x-3)?

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b