Third Degree
New member
- Joined
- Dec 4, 2006
- Messages
- 7
1) x^2 +1 = -8
x^2 = -9
x = +/- square root -9
x = +/- i * square root 9
x = +/- 3i
My solutions are -3i and 3i
2) 4y^2 + 8 = 2y^2
2y^2 = -8
y^2 = -4
y = +/- square root of -2
y = +/- i * square root of 2
My solutions are i sqrt(3) and -i sqrt(3)
x^2 = -9
x = +/- square root -9
x = +/- i * square root 9
x = +/- 3i
My solutions are -3i and 3i
2) 4y^2 + 8 = 2y^2
2y^2 = -8
y^2 = -4
y = +/- square root of -2
y = +/- i * square root of 2
My solutions are i sqrt(3) and -i sqrt(3)