Find the maximum or minimum value of each quadratic

MATHEMATICS · Multi-part · A Level · Mathematics · Differentiation · Differentiation

Problem

Find the maximum or minimum value of each quadratic, and the corresponding value of xx: (1) y=3x2+4x+7y=3x^2+4x+7 (2) y=−2x2−5x+2y=-2x^2-5x+2

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