Answer:
26
Step-by-step explanation:
We can use difference of squares:
(5 - i)(5 + i) = 5^2 - i^2
i^2 = -1, so we have 25 - (-1) = 25 + 1 = 26
4 = 2 x 2
6 = 2 x 3
9 = 3 x 3
14 = 2 x 7
49 = 7 x 7
Therefore, the three factors used are 2, 3 and 7.
Answer:
(5, -9)
Step-by-step explanation:
f(x)=(x-8)(x-2)
We want the vertex. So let us get this in Vertex Form.
f(x) = (x - 8)(x - 2) = x^2 + 16 - 10x
f(x) = x^2 - 10x + 16
f(x) = x^2 -10x + 25 - 25 + 16
f(x) = (x^2 -10x + 25) - 25 + 16
f(x) = (x - 5)^2 - 9
Vertex at (5, -9)
You would have to use the quadratic formula because it’s not a perfect square
That answer you are looking for would be $15.61
i hope this helped you with the answer!
