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Pie
3 years ago
5

Hey can you please help me posted picture of question

Mathematics
2 answers:
larisa [96]3 years ago
5 0
(5x - 2)^2 = 15

Square root both sides:
5x - 2 = \pm\sqrt{15}

Add 2 to both sides:
5x = pm\sqrt{15} + 2

Divide both sides by 5:
x =  \dfrac{ \pm\sqrt{15} + 2}{5}

Answers:
x = \dfrac{ \sqrt{15} + 2}{5} \ or \ \dfrac{ - \sqrt{15} + 2}{5}

Answer: (B) and (E)

Leto [7]3 years ago
4 0
Ans: Option (B) and Option (E)

Explanation:

Given equation:
(5x-2)^2 = 15

Take square-root on both sides:
\sqrt{(5x-2)^2} =  \sqrt{15} \\ 5x - 2 = \pm \sqrt{15}  \\  x = \frac{ \pm \sqrt{15} + 2}{5}

Also plus-minus are involved, hence Options (B) and (E) are both correct.
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