Question

whats the domain for
(-9x+30)(9x+3)/(3x-9)(8x+3) i got -3 and 3/8 but it says its wrong

Answer 1

You must set the factors of the denominator equal to 0 and solve so that you can find the numbers that cause a denominator of 0.

Answer 2

\[3x-9=0\]
\[3x=9\]
x=3

Answer 3

\[8x+3=0\]
\[8x=-3\]
\[x=\frac{-3}{8}\]

Answer 4

So x cannot be 3 or -3/8