please help me on my 9th grade math!PLZZZ:(?

finding f(x) basically means you plug in the number you are given for "x" and solve as a regular equation. (just in case you didn't know)

F(x)= -x^2+x-1

-(5)^2+(5)-1

-25+(5)-1

-20-1

-21

your answer is -21

- x^2 + x - 1

- (5)^2 + 5 - 1

- 25 + 5 - 1

- 21

nicely hi there Im a Junior this 300 and sixty 5 days and in case you wanna get reliable grades do basically all your artwork and turn It In and each thing like that and be certain which you do no longer something stupid and to purely no longer loiter around the incorrect human beings and all that or that could screw you up alot.. It did with me.. So ya do basically all your artwork turn all of it In and basically dont returned discuss with the lecturers which you have. after which you're able to get reliable grades in case you basically try this.. desire I helped some and stuff =) reliable success on your first 300 and sixty 5 days of highschool.. oh and one greater ingredient your first 300 and sixty 5 days you will hear a super number of stuff approximately you and bout the 2d 9 weeks there'll be a super number of drams

-21