3 years ago

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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