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Maggie
Mathematics
13 May, 12:32
If f (x) = 3x2 and g (x) = x + 2, find (f*g) (x)
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Mylie Ewing
13 May, 12:59
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(f*g) (x) = 3 (x + 2) ² = 3x² + 12x + 12
Step-by-step explanation:
∵ f (x) = 3x²
∵g (x) = x + 2
∵ (f*g) (x) means the domain of f (x) is g (x)
∴ We will put it like that f (x + 2)
∴ (f*g) (x) = f (x + 2) = 3 (x + 2) ² = 3 (x² + 4x + 4) = 3x² + 12x + 12
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