helper4282
16.07.2019 •
Mathematics
Solve x2 + 4x + 8 = 0. (2 points) 1. x equals negative 2 plus or minus 2 i 2. x equals negative 2 plus or minus 4 i 3. x equals negative 4 plus or minus 2 i 4. x equals negative 4 plus or minus 4 i
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Ответ:
We can find this by using the quadratic equation, which is written below.
Now we know the a, b and c values by looking at the equation. a is always the number attached to x^2 (which is 1), b is always the number attached to x (which is 4) and c is the number with no variable (which is 8). So we can place them in in the appropriate spots in the equation.
-2 +/- 2i
Ответ:
Step-by-step explanation:
Perpendicular