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F(x) = 3x + 5

g(x) = 4x² - 2
h(x)=x²-3x+1
Find f(x) + g(x) - h(x).
O3x² + 6x + 2
3x² + 2
O5x² + 4
O 6x² + 6x - 1

User Levirg
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7.9k points

1 Answer

5 votes

Final answer:

When combining functions f(x), g(x), and h(x) as requested, the result simplifies to 3x² + 2.

Step-by-step explanation:

To find f(x) + g(x) - h(x), we simply perform the operations indicated, combining the like terms from each function. Let's first write down each function and then combine them accordingly:

f(x) = 3x + 5

g(x) = 4x² - 2

h(x) = x² - 3x + 1

Now, adding f(x) and g(x), and then subtracting h(x), we get:

f(x) + g(x) - h(x) = (3x + 5) + (4x² - 2) - (x² - 3x + 1).

We combine like terms:

  • For the x² terms: 4x² - x² = 3x²
  • For the x terms: 3x + (-3x) = 0x
  • For the constant terms: 5 - 2 - 1 = 2

So, f(x) + g(x) - h(x) simplifies to:

3x² + 0x + 2

Or, more simply:

3x² + 2