Answer:
x = ± 
- 2
Step-by-step explanation:
x² + 4x = 4
to complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(2)x + 4 = 4 + 4
(x + 2)² = 8 ( take square root of both sides )
x + 2 = ± ( subtract 2 from both sides )
x = ± - 2
Answer:
7 miles
Step-by-step explanation:
35 x 0.2 = 7 miles
We evaluate b^2 - 4ac. If the answer is positive, then there are two real solutions. If it is zero, there is one real solution. If it is negative, there are 2 complex solutions. In this equation, a = 1, b = 5, c = 7. Now we plug in the numbers.
Because this answer is positive, there are two real solutions.
Step-by-step explanation:
Our roots are 3, and i so our roots form
will be
Since i is one root, it conjugate, must be the other.
so we have
Simplify
So the function is
Answer:
can you post a clearer picture ?
Step-by-step explanation:
