ANSWER
[tex]B\text{. }-5a^2\text{ + 4ab - 3b}[/tex]EXPLANATION
We want to find the equivalent expression to the given expression.
To do that, we have to simplify the expression by collecting like terms.
The expression is:
[tex](-4a^2-3b)+(-2ab-a^2+b^2)+(-b^2\text{ + 6ab)}[/tex]So, we have:
[tex]\begin{gathered} -4a^2-3b-2ab-a^2+b^2-b^2\text{ + 6ab} \\ -4a^2-a^2+b^2-b^2\text{ - 2ab + 6ab - 3b} \\ -5a^2\text{ + 4ab - 3b} \end{gathered}[/tex]The answer is Option B.
