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I. $x^{2} - 10 x + 21 = 0$
II. $y^{2} - 19 y + 84 = 0$ . Solve both and pick the relation between $x$ and $y$ .

Competition practiceQuadratic Comparison

A $x > y$
B $x < y$
C $x$ ≤ $y$
D $x$ ≥ $y$

Step-by-Step Solution

x = 3

or 7;

y = 7

or 12. Every

x

is less than or equal to every

y

(they are equal when

x = y = 7

), so

x

≤

y

.

Answer: C)

x

≤

y

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