f(x)= (x-2) (x +2) (x -5)
2007-08-04 04:58:09 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
f(x)= (x-2) (x +2) (x -5)
put x=3
f(3)=(3-2)(3+2)(3-5)
f(3)=-10
plz vote me best ans
2007-08-04 05:03:47 · answer #1 · answered by friend_goel 3 · 0⤊ 0⤋
f(3) = 1 x 5 x (- 2) = - 10
2007-08-04 12:03:42 · answer #2 · answered by Como 7 · 0⤊ 0⤋
First you replace x with 3
f(3)=(3-2) (3+2) (3-5)
You do the math
f(3)= (1) (5) (-2)
So the answer is
-10
Then
f= 3.3333333333333333333333333 repeating
or f= 3 1/3
2007-08-04 12:07:13 · answer #3 · answered by AD 4 · 0⤊ 0⤋
yes, every one is telling you to substitute x by 3 and then solve it.
ill solve it for you :)
f(3) = (3 - 2) (3 + 2) (3 - 5)
hence:
f(3) = (1) (5) (-2)
You can leave the 1 because any number multiplied by 1 is the number.
So youre left with:
(5)(-2)
5 x -2
= -10
Hence:
f(3) = -10
:)
2007-08-04 12:05:54 · answer #4 · answered by .:Julia:. 4 · 0⤊ 0⤋
1(3)(-2)
-6.
You just replace every x with 3
2007-08-04 12:00:55 · answer #5 · answered by PSU840 6 · 0⤊ 0⤋
f(3) means x=3
f(3)=(3-2)(3+2)(3-5)
f(3)=(1)(5)(-2)
f(3)=-10
answer:-10
2007-08-04 12:17:41 · answer #6 · answered by Amanda J 2 · 0⤊ 0⤋
i got -10 for f(3)
2007-08-04 12:06:42 · answer #7 · answered by b 2 · 0⤊ 0⤋
just substitute x with the value of 3 then perform the operation.
2007-08-04 12:02:24 · answer #8 · answered by ronjo 2 · 0⤊ 0⤋
you replace x to 3 then solve it.
2007-08-04 12:00:44 · answer #9 · answered by answer-er 3 · 0⤊ 0⤋