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Compare $x$ and $y$ after solving: I. $x^{2} - 10 x + 21 = 0$
II. $y^{2} - 4 y + 3 = 0$

Competition practiceQuadratic Comparison

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

Step-by-Step Solution

x = 3

or 7;

y = 1

or 3.

x

is never less than

y

and can equal it (3 = 3), so

x

≥

y

.

Answer: A)

x

≥

y

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