2006-06-22 07:07:17 · 6 answers · asked by boukabutt 1 in Education & Reference ➔ Homework Help
Well ur question is incomplete
Still i will try to help
The function of x is given
So we can substitute any value for x and can get the answer for the function of x.
Suppose x = 4
so the value of f(x)= (-3)4^2 +2(4)-2
= -48 +8 -2
= -42
2006-06-22 07:14:46 · answer #1 · answered by nicegal 3 · 0⤊ 0⤋
Use the formula minus b plus or minus square root ( b squared minus 4 times (a into c) whole divided by 2 times a.
2006-06-22 07:26:56 · answer #2 · answered by Shady McCool 3 · 0⤊ 0⤋
this eq. can be solved by shridhar's formula
[-b+-sq. root(b^2-4ac)]/2a
here
a= -3
b= 2
c= -2
the roots are [-2+-sq. root(20)]/-6
==2[-1+-sq. root(5)]/-6
==[-1+-sq. root(5)]/-3
==[-1+-2.24]/-3
the two roots are 1.08 and -0.41.
ok
2006-06-22 07:20:02 · answer #3 · answered by Nirbhaya 2 · 0⤊ 0⤋
This quadratic cannot be factorised, it has no real solutions!
2006-06-22 07:11:40 · answer #4 · answered by aman101live 1 · 0⤊ 0⤋
f(x)=y
plug a "y"value in. try -2,-1,0,1,2
2006-06-22 07:12:14 · answer #5 · answered by Anonymous · 0⤊ 0⤋
another question?
2006-06-22 07:13:20 · answer #6 · answered by Anonymous · 0⤊ 0⤋