1
(a^2-b^2)/[-2(√bx)^5] *x^2/√(3a+3b) / (a-b)/(4√b/5)
=√(a+b)/b^2 * [-2/(5√3)]
2
1/[(7y√y)/2x]^2 -x/y^3
=4x^2/y^2-x/y^3
3
4
3√(3 1/2)* (√1 4/7)/(-8) / √(51/2)/4
=3(√7/√2)* (√11/√7)/(-8) *4√2/√11
=-3/2
5
2(√(xy^5)/y * 3√(x^3y)/(-2) / √(y/x)/3)
=-9x^2y√x√y
6
√(b/a) * (-5)(√a^3/b^3) *√(b^3/a^3)
=-5√(b/a)