Question

Find the zeros of the following equations/functions
y = x2 + 2x + 3

Answer 1

please help!

Answer 2

x_1,_2=(-2+/- sqrt(4-12))/2 =(-2+/- sqrt(-8))/2=2(-1+/-isqrt2)/2 =
= -1+/- isqrt2

Answer 3

Possible intermediate steps:
x^2+2 x+3 = 0
Subtract 3 from both sides:
x^2+2 x = -3
Add 1 to both sides:
x^2+2 x+1 = -2
Factor the left hand side:
(x+1)^2 = -2
Take the square root of both sides:
sqrt(x+1) = i sqrt(2)
Eliminate the absolute value:
x+1 = -i sqrt(2) or x+1 = i sqrt(2)
Subtract 1 from both sides:
x = -1-i sqrt(2) or x+1 = i sqrt(2)
Subtract 1 from both sides:
x = -1-i sqrt(2) or x = -1+i sqrt(2)

Answer 4

Thank u!!!