Answer:
Either [tex]-45x+18x^{2}[/tex] or [tex]-45+18x[/tex] depending on whether or not I've interpreted the written expression correctly.
Explanation:
I'm not 100% sure what your question is asking however I can interpret it in two ways.
1) [tex]-9x(5-2x)[/tex]
OR
2) [tex]-9*(5-2x)[/tex]
Since there's an unknown variable, the closest thing we can get to an answer is a simplified expression. We can do this by distributing the number outside of the parenthesis (either -9 or -9x depending on which expression you're doing).
1) To solve for the first expression, you distribute -9x to the numbers inside of the parenthesis. So, -9x multiplied by 5 is -45x and -9x multiplied by -2x is 18x². In this case, the simplified expression would be [tex]-45x+18x^{2}[/tex].
2) To solve for the second expression, you distribute -9 to the numbers inside of the parenthesis. So, -9 multiplied by 5 is -45 and -9 multiplifed by -2x is 18x. In this case, the simplified expression would be [tex]-45+18x[/tex].