exam Maths Puzzle Numerical Ability

Determine if this equation can be expressed in quadratic form and if so write the equation in quadratic form. (x-3)^2 -4(x-3)-21=0

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exam Other Question

Quadrilateral ABCD has a perimeter of 95 centimeters. Find the length of each side if and hey i wanna now to resolve -(0.5+0.2)-6+(-0.3))