Direction: In the following questions two equations numbered I and II are given. You have to solve both the equations and give answer.
(A) x>y
(B) x≥y
(C) x˂y
(D) x≤y
(E) x=y or the relations ship cannot be established

I. $$ {x^2+9x+14=0}$$
II. $$ {y^2+y=2}$$

Direction: In the following questions two equations numbered I and II are given. You have to solve both the equations and give answer.
(A) x>y
(B) x≥y
(C) x˂y
(D) x≤y
(E) x=y or the relations ship cannot be established

I. $$ {4x^2-4x-3=0}$$
II. $$ {4y^2+12y+5=0}$$

Find the exact value of the following question:

$$ \sqrt {123×8+2389-1164}=? $$

Find the exact value of the following question:

$$ (13+2\sqrt{5})^2=?\sqrt{5}+189 $$

Find the exact value of the following question:

$$ 8\sqrt{?}÷14×3+9=21$$

Find the exact value of the following question:

$$ 1280÷{2^3} + 1220÷{2^2}-182=?$$

Find the exact value of the following question:

$$ 3{1\over2} × 3 {1\over 7}+ 5{3\over4}÷{46\over3}=?$$

(3x-7)³+(3x-8)³+(3x+6)³=3(3x-7)(3x-8)(3x+6)
Find the value of x ?