Solve the quadratic equation x2+2x+3

Mathematics

2 answers:

Anastaziya [24]2 years ago

8 0

Answer:

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

Step-by-step explanation:

adelina 88 [10]2 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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