SOLUTION: This test is very difficult and any help would be so very much appriciated, please reply asap. The problem is: Find K given F=(-4)=15 and {{{F(x)=2x^4+11x^3+7x^2+Kx+27}}}

Algebra ->  Test  -> Lessons -> SOLUTION: This test is very difficult and any help would be so very much appriciated, please reply asap. The problem is: Find K given F=(-4)=15 and {{{F(x)=2x^4+11x^3+7x^2+Kx+27}}}      Log On


   

Question 122890: This test is very difficult and any help would be so very much appriciated, please reply asap. The problem is:
Find K given F=(-4)=15 and F%28x%29=2x%5E4%2B11x%5E3%2B7x%5E2%2BKx%2B27
Answer by oscargut(2103) About Me  (Show Source):
You can put this solution on YOUR website!
F(-4)= 2(-4)^4+11(-4)^3+7(-4)^2+K(-4)+27=15
then 512-704+112-4K+27=15
then -68=4k then k=-17