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Marrrta [24]
3 years ago
6

Find f(2x) when f(x)=3x^2+2x-2

Mathematics
1 answer:
bonufazy [111]3 years ago
5 0

Answer:

C.

6 {x}^{2}  + 4x - 4

Step-by-step explanation:

2(3 {x}^{2}  + 2x - 2) \\ 6 {x}^{2}  + 4x - 4 \\

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Answer:

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Step-by-step explanation:

Let xx be Sara’s age five years ago. Therefore, Sara’s aunt’s age 5 years ago is 4x4x.

The difference in their ages is a constant, no matter how many years have gone by. (Can you see why?)

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Therefore, Sara’s current age (5 years later) is 19 years old.

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2 years ago
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