2006-10-02 10:51:41 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
This is simple. Replace x with -2. 5(-2)2 -3(-2) +1
5(4)+6+1= 20+6+1=27
2006-10-02 10:58:07 · answer #1 · answered by Melanie G 1 · 0⤊ 0⤋
given f(x)=5x^2-3x+1
f(-2)=5(-2)^2-3(-2)+1
=5(4)+6+1
=20+6+1
=27
2006-10-04 19:25:03 · answer #2 · answered by srirad 2 · 0⤊ 0⤋
Hey - I just taught this topic today! Are you one of my students?
f(-2) simply means that wherever you see an x in the equation, replace it with -2.
f(-2) = 5(-2)^2 - 3(-2) + 1
The rest is just BEDMAS and calculator work!
2006-10-02 10:53:41 · answer #3 · answered by whatthe 3 · 0⤊ 0⤋
f(-2) = 5(-2)^2 - 3(-2) + 1
f(-2) = 5(4) + 6 + 1
f(-2) = 20 + 7
f(-2) = 27
2006-10-02 12:18:42 · answer #4 · answered by Sherman81 6 · 0⤊ 0⤋
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2016-10-18 09:15:18 · answer #5 · answered by Anonymous · 0⤊ 0⤋