exam Maths Puzzle Numerical Ability

Solve by completing the square.
x^2 + 2x - 8 = 0

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exam Other Question

Bruce discovered that the wishing well contained $9 in nickles and dimes and that there were 30 more dimes than nickles. How many coins of each type were there? How would i write an equation for each translation of y= -[x], if i need to move 2 units up?? would it say y= -[x] + 2?? would 3/2 down be y= -[x]-3/2???