2 years ago

Please help . I’ll mark you as brainliest if correct

Mathematics

1 answer:

il63 [147K]2 years ago

3 0

Answer:

30 m

Step-by-step explanation:

51-21=30

<h2><em><u>PLEASE VOTE BRAINLIEST GIVE THANKS</u></em></h2>

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For this case we have the following equation:

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Rewriting we have:

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Dividing by 2 to both sides of the equation:

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We apply the quadratic formula:

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We have to:

$a = 1\\b = 6\\c = -6$

Substituting:

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Thus, we have two roots:

$x_ {1} = - 3+ \sqrt {15}\\x_ {2} = - 3- \sqrt {15}$

ANswer:

$x_ {1} = - 3+ \sqrt {15}\\x_ {2} = - 3- \sqrt {15}$

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