Question

сократите дробь
a-b^2/a-a^1/2 b

Answer 1

a-b^2/a-a^1/2 b = [(√a)^2 - b^2] / [(√a)^2 - (√a)*b] = 
= [(√a - b)*(√a + b)] / [√a(√a - b) = (√a + b) / (√a)