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lubasha [3.4K]
3 years ago
6

F(x) = 4x + 7, g(x) = 3x2 Find (fg)(x).

Mathematics
2 answers:
Brums [2.3K]3 years ago
5 0
F(x) = 4x + 7
g(x) = 3x²

(f · g)(x) = 3x²(4x + 7)
(f · g)(x) = 3x²(4x) + 3x²(7)
(f · g)(x) = 12x³ + 21x²
mario62 [17]3 years ago
4 0

Answer:

Value of (fg)(x) is:

12x³+21x²

Step-by-step explanation:

f(x) = 4x + 7, g(x) = 3x²

(fg)(x)=f(x)g(x)

        =(4x+7)(3x²)

       = 4x(3x²)+7(3x²)

       = 12x³+21x²

Hence, value of (fg)(x) is:

12x³+21x²

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