The isoquant line is described on this forms:

Question

a)y=[x1/2 + x1/2]2 (1/2 should be mark as upper quartile)
b)y=[x12 + x22]1/2 (x1 as lower quartile and 2 upper for first x and same for x22).
The question is how to draw the isoquent line and how to explain the differences between production technology a) and b)

Im having mucho trouble trying to understand your math notation. Understandably, expressing the right mathmatical symbols and notation is quite difficult in Jiskha's pure text posting environment.

Im guessing x1 and x2 are different inputs in the production function. Yes?

A typical production function taught in economics is the so-called Cobb-Douglas, which takes the form A*(K^a)*(L^b), where K is capital, L is labor, A is a constant, and a and b are power terms where a+b=1. Are you starting from a Cobb-Douglas??

Repost. If your original problem has super and subscripts, they will need to be explained.

Sorry I didn´t expl. it correctly and I´m agree it hard without rights symbol. Yes a) x1 and x2 is different input and each have 1/2 square and both in square 2. b) x1 and x2 has square 2 and both in square 1/2. No, it does not start from the cobb-douglas it's only an quastion to draw the line with these two formula (a and b) on the axis to show the isoquant and explain the difference between this two production technology (a and b)