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https://socratic.org/questions/how-do-you-solve-y-x-4-2-1

https://socratic.org/questions/how-do-you-sketch-the-graph-of-y-x-4-2-3-and-describe-the-transformation

https://socratic.org/questions/how-do-you-graph-and-label-the-vertex-and-axis-of-symmetry-of-y-x-4-2-8

https://socratic.org/questions/how-do-you-work-out-the-x-intercepts-of-the-equation-y-2-x-4-2-3-by-factorising--4

https://socratic.org/questions/how-do-you-write-a-polynomial-in-standard-form-then-classify-it-by-degree-and-nu-31

https://socratic.org/questions/how-do-you-graph-the-quadratic-function-and-identify-the-vertex-and-axis-of-symm-7

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y=-\left(x^{2}-8x+16\right)-3

Koristite binomnu teoremu \left(a-b\right)^{2}=a^{2}-2ab+b^{2} da biste proširili \left(x-4\right)^{2}.

y=-x^{2}+8x-16-3

Da biste pronašli suprotnu vrijednost od x^{2}-8x+16, pronađite suprotnu vrijednost svakog izraza.

y=-x^{2}+8x-19

Oduzmite 3 od -16 da biste dobili -19.

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