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schepotkina [342]
2 years ago
12

F(x) = 4x² + 5x - 3 g(x) = 4x³ 3x² + 5 Find (f+g)(x).

Mathematics
1 answer:
Dmitriy789 [7]2 years ago
5 0

Answer:

4x^3+7x^2+5x+2

Step-by-step explanation:

Given:

f(x)=4x^2+5x-3

g(x)=4x^3+3x^2+5

\begin{aligned}\implies (f+g)(x)=f(x)+g(x) & = (4x^2+5x-3) + (4x^3+3x^2+5) \\& = 4x^2+5x-3+4x^3+3x^2+5 \\& = 4x^3+4x^2+3x^2+5x-3+5 \\& = 4x^3+7x^2+5x+2 \\\end{aligned}

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