3 years ago

Can someone explain how to do this, please?

Mathematics

1 answer:

BartSMP [9]3 years ago

6 0

Answer:

$\sqrt{ {28x}^{2} - 6x }$

Step-by-step explanation:

You would substitute "2x" for every "x" in the function in the same way you would substitute any other number.

So if f(x)=Sqrt[7x²-3x], then: f(2x)=Sqrt[7(2x)²-3(2x)]

=Sqrt[7(4x²)-3(2x)]

=Sqrt[28x²-6x]

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Can someone explain how to do this, please?​

Can someone explain how to do this, please?