2 years ago

Please answer within the next 7 min, giving 38 points of a ligament answer!

Mathematics

1 answer:

frosja888 [35]2 years ago

6 0

The answer is choice C

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Select the two values of x that are roots of this equation.<br>x + 2x - 6 = 0

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For this case we must solve the following quadratic equation:

$x ^ 2 + 2x-6 = 0$

Where:

$a = 1\\b = 2\\c = -6$

The solution is given by:

$x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}$

Substituting:

$x = \frac {-2 \pm \sqrt {2 ^ 2-4 (1) (- 6)}} {2 (1)}\\x = \frac {-2 \pm \sqrt {4 + 24}} {2}\\x = \frac {-2 \pm \sqrt {28}} {2}\\x = \frac {-2 \pm \sqrt {2 ^ 2 * 7}} {2}\\x = \frac {-2 \pm2 \sqrt {7}} {2}\\x = -1 \pm \sqrt {7}$

Thus, we have two roots:

$x_ {1} = - 1+ \sqrt {7}\\x_ {2} = - 1- \sqrt {7}$

ANswer:

$x_ {1} = - 1+ \sqrt {7}\\x_ {2} = - 1- \sqrt {7}$

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3 years ago

Which function is equivalent to y = 3(x + 2)2 + 7?

Tems11 [23]

Answer:

The answer is D

Step-by-step explanation:

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2 years ago

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Answer:

Step-by-step explanation:

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Hope this helps!

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2 years ago

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