exam Maths Puzzle Numerical Ability

Solve using the quadratic formula please:



Please help me with step by step instructions to help me understand.
Thank you in advance!
C

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exam Other Question
sketch the graph y=(x-0)^2-4 vertex, zero's Help would be appreciated

Simplify

-4^2 + (-2)^4 - 3^3 - absolute vale of -4 - 4