Please master quickly give an answer, this afternoon will be handed in 1. Given the absolute value of the rational numbers a, B, C (4-A) ^ 2 + (4b-1) ^ 2 + C + 1 = 0, try to find the value of a ^ 3N + 1 × B ^ 3N + 2-C ^ 4N + 2 2. In the product of x ^ 2 + PX + 8 and x ^ 2-3x + Q, there is no x ^ 3 and X term 3. Given x + y = 1, xy = 1 / 5, find (x ^ 2 + 1) (y ^ 2 + 1) 4. Given a ^ 2-3a + 1 = 0. Find the values of a + a 1 / 2, a ^ 2 + A ^ 2 / 1 and (A-A 1 / 2) ^ 2

Please master quickly give an answer, this afternoon will be handed in 1. Given the absolute value of the rational numbers a, B, C (4-A) ^ 2 + (4b-1) ^ 2 + C + 1 = 0, try to find the value of a ^ 3N + 1 × B ^ 3N + 2-C ^ 4N + 2 2. In the product of x ^ 2 + PX + 8 and x ^ 2-3x + Q, there is no x ^ 3 and X term 3. Given x + y = 1, xy = 1 / 5, find (x ^ 2 + 1) (y ^ 2 + 1) 4. Given a ^ 2-3a + 1 = 0. Find the values of a + a 1 / 2, a ^ 2 + A ^ 2 / 1 and (A-A 1 / 2) ^ 2

1
a-4=0
4b-1=0
c+1=0
Then a = 4, B = 1 / 4, C = - 1
The coefficient before x ^ 3 is:
-3+p
The coefficient before x is:
-24+pq
be
p=3,q=8
open
(xy)^2+x^2+y^2+1
(x^2+y^2)=(x+y)^2-2xy=1-2/5=3/5
Then (x ^ 2 + 1) (y ^ 2 + 1) = 1 / 25 + 3 / 5 + 1 = 41 / 25
a^2-3a+1=0
Obviously, a ≠ 0
Divide by a at the same time
a+1/a-3=0、
a+1/a=3
Square, (a + 1 / a) ^ 2 = 9
Then a ^ 2 + 1 / A ^ 2 + 2 = 9, then a ^ 2 + 1 / A ^ 2 = 7
(a-1/a)^2=a^2+1/a^2-2=7-2=5