Operations With Functions And Compositions Of Functions

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

If f\left(x\right)=2x+1\ and\ g\left(x\right)=3x+2 Find\ \left(f\circ g\right)\left(x\right)

• f(g(x)) = 6x + 4

• f(g(x)) = 6x + 5

• f(g(x)) = 5x + 8

• f(g(x)) = 5x + 5

When f(x) = 2x and g(x) = x²+3

Find f(g(x)).

• x²+2x+3

• 4x²+3

• 2x²+3

• 2x²+6

When g(x)=3x+4 and h(x)=3x-1

Find g(h(x))

• -9x+11

• 4x²+4x

• 9x+1

• 9x+11

When f(x)=x²+1 and g(x)=2x-5

Find f(g(x))

• 4x²-20x+26

• -x²+2x+4

• -x²-2x-6

• x²-2x-4

When f(x) = 4x + 1 and g(x) = 4x - 3 Find f(x) * g(x)

• 16x² + 8x - 3

• 16x² - 8x + 3

• 16x² - 8x - 3

• 16x² - 16x - 3

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

Find f(x) + g(x).

• 14x-10

• -8x+2

• 2x+2

• 2x-2

• 4x²+24

• 4x²+20x+24

• 4x²+12x+24

• 4x²+4x+24

When 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

When f(x) = 3x² + 7x and g(x) = 2x² - x - 1 Find f(x) - g(x)

• 11x² - 1

• 5x⁴ + 6x² - 1

• 5x² + 6x - 1

• x² + 8x +1