- #1

- 45

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Also could you equate 5x[itex]^{2}[/itex] to 25x?

Just a thew random queries going around my head.

NOTE: I'm 14.

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- Thread starter MarcAlexander
- Start date

- #1

- 45

- 1

Also could you equate 5x[itex]^{2}[/itex] to 25x?

Just a thew random queries going around my head.

NOTE: I'm 14.

- #2

mathman

Science Advisor

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You could write 5x

- #3

Mark44

Mentor

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There are properties of square roots that can be used here; namely that for nonnegative real numbers a and b,How does one calculate the square root of a quantity of x e.g. [itex]\sqrt{25x}[/itex]?

[itex]\sqrt{ab} = \sqrt{a}\sqrt{b}[/itex]

So, [itex]\sqrt{25x} = \sqrt{25}\sqrt{x} = 5\sqrt{x}[/itex]

mathman already gave an answer to this, but it's worthwhile to find out exactly what you're asking.Also could you equate 5x[itex]^{2}[/itex] to 25x?

When you ask about equating the two quantities, yes, there are a couple of values that make the equation true.

If you're asking whether you can simplify 5x

Just a thew random queries going around my head.

NOTE: I'm 14.

- #4

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Thanks.

- #5

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How would I work out [itex]\frac{p}{4}[/itex]=[itex]\frac{y}{2}[/itex] in terms of y?

- #6

FeDeX_LaTeX

Gold Member

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How would I work out [itex]\frac{p}{4}[/itex]=[itex]\frac{y}{2}[/itex] in terms of y?

What can you do to both sides to get y on its own?

Multiply both sides by 2.

- #7

- 45

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What can you do to both sides to get y on its own?

Multiply both sides by 2.

Times by 2?

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