How do i solve x^3 (x-9) + (4x^3) don't give me the answer explain it

2 answers

Not sure what you mean by "solve" it. It's just an expression. Using the distributive property, it expands to

x^3(x) - x^3(9) + 4x^3
Now just collect the x^3 terms
the website symbolab can help you with this, they give step by step explanations.