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>.
Answer:
108x + 29
—————
180
Step-by-step explanation:
Answer:
8:10 and 12: 15
Step-by-step explanation:
we have to multiply
Answer:
it seas 40 points but its only 20
Step-by-step explanation:
;-;
Answer:
D. 2 to 5
Step-by-step explanation:
10 milk orders to 25 juice orders can be simplified to 2:5 when divided by five.