exam Maths Puzzle Numerical Ability

Evaluate

-c2nd power - 5(c 0 power + d)2nd power if c = -3 and d = 4

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exam Other Question

Using the quadratic equation y = x2 - 6x + 8 = 0, perform the following tasks:
Solve by factoring.
Solve by using the quadratic formula. Find the equation of the line that passes through (3,-5) and is perpendicular to the line that passes through (7,-5) and (-2,-4)