Answer:
option-B
Step-by-step explanation:
we are given
[tex]-5x^3(3x^2+3x-1)[/tex]
we can use distributive property
Distributive property:
[tex]a(x+y+z)=a\cdot x+a\cdot y+a\cdot z[/tex]
now, we can apply this formula
and we get
[tex]-5x^3(3x^2+3x-1)=-5x^3\cdot 3x^2-5x^3\cdot 3x-5x^3\cdot -1[/tex]
we can see that there are two negative signs in last term
so, we can write as
[tex]-5x^3(3x^2+3x-1)=-5x^3\cdot 3x^2-5x^3\cdot 3x+5x^3\cdot 1[/tex]
so,
option-B
