Function Operations

f(x) = 9 - 3x

g(x) = 5x - 7

Find f(x) + g(x). 

• 14x-10
• -8x+2
• 2x+2
• 2x-2

f(x) = x² + 9

g(x) = x - 9

Find f(x) - g(x). 

• x²+x+9
• x²-x+9
• x²-x
• x²-x+18

f(x)=x² + 1

g(x)=2x - 5

Find f(x) - g(x)

• x²-2x+6
• -x²+2x+4
• -x²-2x-6
• x²-2x-4

f(x) = 4x + 8

g(x) = x + 3,

Find f(x) * g(x)

• 4x²+24
• 4x²+20x+24
• 4x²+12x+24
• 4x²+4x+24

f(x) = x³ - 3x

g(x) = -4x + 1

Find f(x)*g(x)

• -4x³-5x²-3
• -4x³+2x²-3x
• -4x⁴+x³+12x²-3x
• -4x^4-x³+12x²⁺3x

f(x) = 2x + 4

g(x) = 3x² - 1

Find f(x)*g(x)

• 6x⁴+12x³-4x²-8x
• -6x³+12x²+2x-4
• 6x³+12x²-2x-4
• 5x²-18x+20

f(n) = 2n + 1

g(n) = 3n

Find f(n) + g(n)

• 5n+1
• -5n+1
• -2n+1
• -6n-1

f(n) = n² + 4n

g(n) = -n - 5

Find f(n) + g(n)

• n²+3n-5
• -n³+2n-7
• n³+3n-3n
• n²-3n-5

f(x) = 3x + 10

g(x) = x - 2

Find f(5) * g(5)

f(x) = 3x + 10

g(x) = x - 2

Find (f - g )(0)