Question

Find all values of the variable for which the following rational expression is undefined.
3a^2+5a/7a-3

a=

Answer 1

This problem is probably typed wrong. Make sure you are using parentheses to get accurate help. Assuming the expression is actually 3a^2 + 5a / (7a - 3), the expression is undefined when 7a - 3 = 0 (because you cannot divide by zero).

So finding a should be easy from there.