Answer
[tex]-16k^2+5k-2[/tex]Explanation
• Given
[tex]B=k-5k^2-1[/tex][tex]C=k-2k^2[/tex]Expression:
[tex]2B+3C[/tex]• Procedure
Replacing the values of B and C in the expression:
[tex]=2(k-5k^2-1)+3(k-2k^2)[/tex]Simplifying the expression:
[tex]=2k-10k^2-2+3k-6k^2[/tex]Adding similar terms:
[tex]=-10k^2-6k^2+2k+3k-2[/tex][tex]=-16k^2+5k-2[/tex]