Function Operations Review (no inverse equations)

When f(x) = 9 - 3x and g(x) = 5x - 7

find f(x) + g(x).

• 14x - 10

• -8x + 2

• 2x + 2

• 2x - 2

When f(x) = x² + 9 and g(x) = x - 9,

find f(x) - g(x).

• x² + x + 9

• x² - x + 9

• x² - x

• x² - x + 18

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

Given f(x) = -x + 4 and g(x) = 6x + 3, find f(x) - g(x)

• -7x + 1

• 5x +1

• -5x -1

• 5x + 1

Given
f(x) = 3x² + 7x and g(x) = 2x² - x - 1, find (f + g)(x).

• 11x² - 1
• 5x⁴ + 6x² - 1
• 5x² + 6x - 1
• 5x² + 8x - 1

• 39
• -27
• -23
• -19

Given p(x) = x - 2 and q(x)=2x+5,

find p(-4) - q(-4).

• -9

• -3

• -1

• 3

f(x)=x³-3x, g(x)=-4x+1 Find f(2) ⋅ g(2)

• 14

• -18

• 0

• -14

• -14/55
• 14/55
• 2
• -2