<PRE><B>Question 1179354</B>
Problem 1
{{{(21a^2b/7a^2b) + (a^2/ b^2)^0}}} 

(3+1)=4


Problem 2:
{{{( 6x-4 )/ (9x^2-12x +4 )}}}

{{{(2(3x-2))/(3x-2)^2}}}



- I come up with final answer of 2/3x-2 Correct

Problem 3:
Radicand 25x^2y^6 over 121x^4

Only numerator radicand or the fraction?

 - I come up with final answer of 5y^6 over 121x^3
Problem 4:
3 Radicand 99 -2 Radicand 44
{{{3*sqrt(99)-2*sqrt(44)}}}

 = - I come up with final answer of 5 Radicand 11correct</PRE>