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Completing the Square

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Question 23
a.

Write 4x2−24x+414x^2 - 24x + 414x2−24x+41 in the form a(x+b)2+ca(x + b)^2 + ca(x+b)2+c where aaa, bbb, and c c\,c are integers.

[3]
b.

Hence, or otherwise, write down the coordinates of the turning point of the graph of y=4x2−24x+41y = 4x^2 - 24x + 41y=4x2−24x+41

[1]

Completing the Square Questions

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