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tatyana61 [14]
3 years ago
6

Solve the quadratic equation x2+2x+3​

Mathematics
2 answers:
Anastaziya [24]3 years ago
8 0

Answer:

-2+ sqrt(8)i or -2-sqrt(8)i

Step-by-step explanation:

adelina 88 [10]3 years ago
3 0

Answer:

x=i\sqrt{2} -1, x=-i\sqrt{2}-1

Step-by-step explanation:

Hoping the equation is x^2+2x+3 = 0

Rewrite so I can complete the square:

x^2+2x=-3

Take the square of half of 2 and square.

x^2+2x+1=-2

(x+1)^2=-2

x + 1=\sqrt{-2}

x=i\sqrt{2} -1, x=-i\sqrt{2}-1

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Could someone please help
alexdok [17]

Answer:

Answer:<em>I think that is right...</em>

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3 0
2 years ago
Solve the following system of equations algebraic<br> y=x^2+3x-29<br> y=2x-9
Lady bird [3.3K]

Step-by-step explanation:

Given equations:

       y  = x² + 3x - 29    ------ (i)

       y  = 2x - 9  ---------------- (ii)

Now to solve this problem, we must determine the value of x and y;

 Equate equations 1 and 2;

       x² + 3x - 29 = 2x - 9

       x² + 3x - 2x - 29 + 9  = 0

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       x² + 5x - 4x - 20  = 0

       x(x + 5 ) - 4(x + 5) = 0

      (x - 4) (x+ 5) = 0

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So;   solve for y now;

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7 0
3 years ago
Katalin drove 300 miles on her vacation. She drove an average of 1.9 times faster on the second 150 miles of her trip than she d
viktelen [127]
300=x+1.9x
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ycow [4]

Answer:

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Step-by-step explanation:

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three times the lesser of two consecutive even integers is 6 less than six times the greatest number. find the integers.
kakasveta [241]

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3 0
3 years ago
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