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Operations of Functions
Con il contributo di: Sefchok
Perform the indicated operation:
f(x) = x2+2xg(x) = 2x - 3
Find (f-g)(x):
 x2+3
-x3-3
2x3+2x-3
x2+4x-3
Perform the indicated operation:
f(x) = x2+2xg(x) = 2x - 3
Find (g-f)(x):
x2+4x-3
2x2-6x
x2+12x
 -x2-3
Perform the indicated operation:
f(x) = x2+2xg(x) = 2x - 3
Find (f-g)(2):
 7
4
-3
8
Perform the indicated operation:
f(x) = x2+2xg(x) = 2x - 3
Find (g-f)(3):
3
30
 -12
-27
Perform the indicated operation:
f(x) = 2x3+4x2+2x+1g(x) = x3-x2+7x+9
Find (f+g)(x):
 3x3+3x2+9x+10
3x3+9x+10
2x6+3x4-7x+10
2x3+5x2+9x+8
Perform the indicated operation:
f(x) = 2x3+4x2+2x+1g(x) = x3-x2+7x+9
Find (f+g)(1):
1
 25
0
21
Perform the indicated operation:
f(x) = (2x3+4x2+2x+1)g(x) = (x+1)
Find (fg)(x):
True
False
2x4+6x3-6x2+3x+1
 2x4+6x3+6x2+3x+1 
Perform the indicated operation:
f(x) = (2x3+4x2+2x+1)g(x) = (x+1)
Find (fg)(-1):
-1
2
11
Perform the indicated operation:
f(x) = (2x3+2x+1)g(x) = (x2+x)
Find (fg)(x):
2x5-2x4-2x3
2x5+2x4+2x3+3x2+x
x+3x2+2x3+2x4+5x6
2x5+2x3+2x4+x
Perform the indicated operation:
f(x) = (2x3+2x+1)g(x) = (x2+x)
Find (fg)(1):
1
10
7
3
Perform the indicated operation:
f(x) = (x2-2)g(x) = (x-3x)
Find (fg)(x):
x2-3x-2
4x-2x2
-2x3+4x
2x+1
Divide using Long Division:
(x2 – 5x + 6) ÷ (x – 2)
X+3
x-2
x-3
2x-3
Divide using Synthetic Division:

2x2+x+2
 2x2-x-2
2x3-x+2
2x2-2
(2x3+7x2-6x-8) ÷ (x+4)
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