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1 Pure Mathematics

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Question 156
79%
a.

Express x2+9x+3x^2 + 9x + 3x2+9x+3 in the form (x+a)2+b(x + a)^2 + b(x+a)2+b

[2]
b.

State the coordinates of the minimum point of the curve y=x2+9x+3y = x^2 + 9x + 3y=x2+9x+3

[2]

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