Question

Evaluate -9 ÷ 3x – x2 + 7 for x = -5. Please show all of your work.

Answer 1

we have
\[\frac{-9}{3x-x^2+7}\]
put x=-5
\[\frac{-9}{3*(-5)-(-5)^2+7}\]
we get
\[\frac{-9}{-15-25+7}\]
or \[\frac{-9}{-33}\]
or \[\frac{3}{11}\]