The general form of a polynomial is: x² + bx + c = 0. Substituting the roots,
3² + b(3) + c = 0
3b + c = -9 --> eqn 1
(5 + √5)² + (5 +√5)(b) + c = 0
(5+√5)b + c = -30-10√5 --> eqn 2
Solving both equations simultaneously by subtracting eqn 2 from eqn 1,
(-2 - √5)b = 21 + 10√5
b = -8 - √5
Using eqn 1,
3(-8 - √5) + c = -9
-24 - 3√5 + c = -9
c = -9 + 24 + 3√5
c = 15 + 3√5
Hence, the polynomial is: <em>f(x) = x² + (-8 - √5)x + (15 + 3√5)</em>.
Are you rounding to the nearest 100’s place?
A is the correct answer to it.
The slope of it is 5/1 and if you start at -3 as that is your Y-intercept, the values add up
Answer:
Brainleist !
Step-by-step explanation:
6 bannas = 1.95
18 bannanas = ?
18/6 = 3
that means 18 is thriple 6, causeing the price of 6 to be tripled as well.
6 bannas = 1.95
18 bannanas = 5.85
