Answer:
the correct answer is below
Step-by-step explanation:
11p7-9p5+8p³-4p7+13p5-5p³
11p7-4p7-9p5+13p5+8p³-5p3
=7p7+4p5+3p³
note: I multiply all the terms in the second parentheses by the negative sign that is beside it.
