We can one theorem to help us find rational roots of this polynomial.
2x^3 + x^2 - 4x - 2
We'll use Descartes' rule of signs.
Because there is 1 sign change, 1 of the 3 roots will be positive.
Now we can make the value of x -1 to see how many negative roots there will be.
-2 + 1 + 4 - 2
There are 2 sign changes, so we know there will be 2 negative roots.
Because of this, we should have 3 real, rational roots.
Answer:
Step-by-step explanation:
Nose
(6,1) , (3,4)
slope = (4 - 1) / (3 - 6) = -3/3 = -1
y = mx + b
slope(m) = -1
use either of ur points....(6,1)...x = 6 and y = 1
now sub and find b, the y int
1 = -1(6) + b
1 = -6 + b
1 + 6 = b
7 = b
so ur equation is : y = -x + 7
Answer:
9
Step-by-step explanation:
18 / 2 = 9
