Question

find all numbers for which the rational expression is not defined: b -5/5b-10

Answer 1

is this the original equation
\(\Large \dfrac{b -5}{5b-10}\)

Answer 2

yes that is the original one.

Answer 3

honestly i want to know how to solve for this.

Answer 4

well the equation we want is

\(\Large \dfrac{b -5}{5b-10}=\infty\)

Answer 5

that is

\(\Large \dfrac{b -5}{5b-10}=\dfrac{1}{0}\)

Answer 6

for that we need to make denominator

\(\Large 5b-10=0\)

Answer 7

hence for \(\Large b=2\)

the original equation is indefined

Answer 8

ok. that is awesome! thank you so much for explaining how to do this.

Answer 9

welcome