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Digiron [165]
3 years ago
5

Solve −2x2 − 16x − 44 = 0.

Mathematics
2 answers:
Mashutka [201]3 years ago
5 0

<u>Answer</u>

x = -4 plus or minus "i" times the square root of 6


<u>Explanation</u>

 −2x² − 16x − 44 = 0.

 −2x² − 16x = 44

Dividing by -2

x² + 8x = -22

x² + 8x + 4² = -22 + 4²

(x + 4)² = -22 + 16

(x + 4) ² = -6

(x + 4) = √-6

Remember √(-1) = i

(x + 4) = i√6                    or  (x + 4) = -i√6

x = -4 + i√6                          x = -4 - i√6                      



Mazyrski [523]3 years ago
3 0
I hope this helps you

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7 0
2 years ago
What is the value of the discriminant, b2 − 4ac, for the quadratic equation 0 = x2 − 4x + 5, and what does it mean about the num
sleet_krkn [62]

Answer:

The discriminant is −4, so the equation has no real solutions.

Step-by-step explanation:

In the equation 0 = x² - 4x + 5, a is 1, b is -4, and c is 5.

Plug in these values into b² - 4ac, and simplify:

b² - 4ac

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16 - 20

= -4

So, the discriminant is -4. This means that the equation has no real solutions, because the discriminant is a negative number.

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2 years ago
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Anastasy [175]

Answer:

∠ABC ≅ ∠DEC

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thus:

∠ACB = ∠GFE

If two of their angles are equal, then the third angle must also be equal, because angles of a triangle always add to make 180°.

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I hope this helps

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