exam Maths Puzzle Numerical Ability

If x = 1 and x = -8, then form a quadratic equation.

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exam Other Question

(-y^-4)^2 / 6(y^-5)^-1
simplify expression with positive exponents only In a box, there are 25 coins consisting of quarters, dimes and nickels with a total amount of $2.75. If the nickels were dimes, the dimes were quarters and the quarters were nickels, the total amount would be $3.75. How many quarters are there?