Answer:
[tex]15x^{2}+52x-320[/tex]
Step-by-step explanation:
You can only evaluate the terms, but you can not find the value of X since it is not an equation, or it is not equalized to something, in this case you only have to do the multyplication of both binomials, and it would be like this:
(3x+20)(5x-16)
This would be
[tex]15x^{2}-48x+100x-320[/tex]
After adding similar terms you get:
[tex]15x^{2}+52x-320[/tex]
