What two numbers multiply to get 42 and add to get 25

Is a positive integer raised to a negative power always positive

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?

Which equation is y = -6x2 + 3x + 2 rewritten in vertex form?