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I. 81x - 117√x + 40 = 0

II. 81y - 225√y + 136 = 0

I. 5x² -14x + 8 = 0   

II. 2y² + 17y  + 36 = 0    

Solve the quadratic equations and determine the relation between x and y:

Equation 1: x² - 34x + 288 = 0

Equation 2: y² - 29y + 210 = 0

I.8^(x+3) +  8^(-x) =72 

II. 5^{(y + 5)} + 5^(-y) = 150 

I. x³ = 1728

II. y² – 15y + 56 = 0

I. 8x² + 2x – 3 = 0

II. 6y² + 11y + 4 = 0

I. 2y² + 11y + 15 = 0

II. 3x² + 4x - 4= 0

(i) 2x² – 9x + 10 = 0

(ii) 4y² – 12y + 9 = 0

I. 195x² - 46x - 21 = 0

II. 209y² + 7y - 12 = 0

I. 7x + 8y = 36

II. 3x + 4y = 14