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Viktor [21]

4 years ago

" align="absmiddle" class="latex-formula">x(x^2+8)=8(x=1)

Mathematics

1 answer:

Alexxx [7]4 years ago

6 0

Answer:

$x=2$

Step-by-step explanation:

$x\left(x^2+8\right)=8\left(x+1\right)$

Expand:

$x\times x^2+8x=8x+8\times 1$

$x^3+8x=8x+8$

Subtract 8x from both sides:

$x^3+8x-8x=8x+8-8x$

$x^3=8$

Cube root both sides:

$\sqrt[3]{x^3} =\sqrt[3]{8}$

$x=2$

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riadik2000 [5.3K]

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Let's isolate y in the first equation. This way we can find the slope.

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The slope of the first line is 1/2 and the slope of the second line is 2.

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3 years ago

What are the domain and range of the function x^2-2x^2-4?

jonny [76]

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3 years ago

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Step-by-step explanation:

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3 years ago

What is 0.(24) ̅ (the 24 is repeating) expressed as a fraction in simplest form?

ratelena [41]

Hi,
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b)Follow the same rule.
let 0.24(4 is repeating) be x
Since there is two decimals in total , 100x=24.44(4 is repeating)
But since there is one decimal that is repeating, there will be one zero. Hence it will become 100x-10x= 24.4(4 is repeating)-2.4(4 is repeating and get the decimal point closest to the repeating decimal)</span>
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4 years ago