2007-09-16 10:33:30 · 11 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
f ( - 2 ) = ( 5 x 4 ) + 6 + 1
f ( - 2 ) = 27
2007-09-17 19:47:23 · answer #1 · answered by Como 7 · 1⤊ 0⤋
just replace -2 for every x you find then do the math. like so
f(-2) = 5x^2 - 3x +1
=5(-2)^2 -3(-2) +1
5*4 + 6 +1
=20 +6 +1
=27
2007-09-16 10:39:56 · answer #2 · answered by mr_gees100_peas 6 · 1⤊ 0⤋
Just add -2 in place of X.
So f(-2)=5(-2)^2-3(-2)+1=27
2007-09-16 10:38:31 · answer #3 · answered by juicy_wishun 6 · 0⤊ 0⤋
merely exchange the -2 for the x's: 5(-2)(-2) - 3(-2) + a million Now multiply and beware for the detrimental warning signs. Your answer would be effective once you multiply 2 negatives.
2016-11-15 09:46:46 · answer #4 · answered by ? 4 · 0⤊ 0⤋
f(-2)=27
f(-2)= 5 (-2)^2 - 3(-2) + 1
= 5(4) + 3(2) +1
=27
2007-09-16 10:42:23 · answer #5 · answered by ecosierra51 2 · 0⤊ 0⤋
simple. just plug in -2 for every x. so it would look like this
5(-2)^2 - 3(-2) + 1
2007-09-16 10:39:15 · answer #6 · answered by Anonymous · 0⤊ 0⤋
just plug -2 into x. f(-2)= 5(-2)^2-3(-2)+1
2007-09-16 10:40:03 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Hello here is how you do it
You substitute -2 for x and you get f(-2) = 27
2007-09-16 10:39:48 · answer #8 · answered by jaems 2 · 0⤊ 0⤋
107, 5(-2)=10
10^2-(3(-2)) +1
100+6+1=
107
2007-09-16 10:39:27 · answer #9 · answered by baseballkeeper15 1 · 0⤊ 3⤋
all you have to do is substitute x for -2 !
2007-09-16 10:37:57 · answer #10 · answered by Anonymous · 0⤊ 1⤋