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2 years ago

What is the first step to solve the equation x^2-3=15

Mathematics

2 answers:

Otrada [13]2 years ago

6 0

You will need to add 3 to each side.

x^2-3=15

+3 +3

x^2=12

and go from there

Vanyuwa [196]2 years ago

5 0

Answer:

<h2>C. Add 3 to both sides of the equation.</h2>

Step-by-step explanation:

$x^2-3=15\qquad\text{add 3 to both sides of the equation}\\\\x^2-3+3=15+3\\\\x^2=15\to x=\pm\sqrt{15}$

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2 years ago

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3 years ago

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fiasKO [112]

Answer:

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Step-by-step explanation:

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2 years ago

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2 years ago

Read 2 more answers

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Alecsey [184]

Answer:

There are 3478761 ways to select the first 5 numbers

Step-by-step explanation:

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In this case it is a combination.

So, what we want to know is how many ways you can choose 5 white balls out of 55.

Then we use the formula of combinations:

$C(n, x) = \frac{n!}{x! (n-x)!}$

Where you have n elements and choose x from them.

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2 years ago

What is the first step to solve the equation x^2-3=15​

What is the first step to solve the equation x^2-3=15