find all values of x if x^2 ≡4mod(5) and 0≤x≤11 ?


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Question Number 200175 by mokys last updated on 15/Nov/23

$f i n d a l l v a l u e s o f x i f x^{2} \equiv 4 m o d (5) a n d 0 ⩽ x ⩽ 11 ?$
Commented by mokys last updated on 15/Nov/23

$w h e r e s t e p s o f t h e s o l u t i o n$
	Answered by cortano12 last updated on 15/Nov/23

	$x = 8$ $x = 3$
	Answered by Rasheed.Sindhi last updated on 15/Nov/23

	$x^{2} \equiv 4 (m o d 5)$ $x \equiv 2 (m o d 5) \lor x \equiv - 2 (m o d 5$ $x \equiv 2 \equiv 7 (m o d 5) \lor x \equiv 3 \equiv 8 (m o d 5)$ $x = 2, 3, 7, 8$
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