Mathematics: Solve the following equation by taking the square root 12 - 6n2 = -420 i need

Solve the following equation by taking the square

Ответ:

animelover730

12.01.2022

Mathematics

$n=\pm 6\sqrt{2}$

Step-by-step explanation:

It may work well to divide by 6, subtract 2, and multiply by -1 before you take the square root.

$12-6n^2=-420\\2-n^2=-70 \qquad\text{divide by 6}\\-n^2=-72 \qquad\text{subtract 2}\\n^2=72 \qquad\text{multiply by -1}\\\\n=\pm\sqrt{36\cdot 2} \qquad\text{take the square root}\\\\n=\pm 6\sqrt{2} \qquad\text{simplify}$

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Ответ:

ashleylit8

12.07.2022

Mathematics

B. 432

Step-by-step explanation:

I used a calculator.

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Solve the following equation by taking the square root 12 - 6n2 = -420 i need

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