Mathematics: Written as a simplified polynomial in standard form, what is the result when (x-4)^2 is subtracted from 10x?

Written as a simplified polynomial in standard form,

Ответ:

skylarschumacher7

26.09.2021

Mathematics

-x^2 +18x -16

Step-by-step explanation:

First we must apply the distributive property to expand (x -4)^2 :

$(x -4)^2 \\ (x -4)(x -4) \\ x(x -4) -4(x -4) \\ x^2 -4x -4x +16 \\ x^2 -8x +16$ .

Now we can subtract the result from 10x .

$10x -(x^2 -8x +16) \\ 10x -x^2 +8x -16 \\ -x^2 +10x +8x -16 \\ -x^2 + (10 +8)x -16 \\ -x^2 +18x -16$

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Ответ:

IBillRandomz2958

27.12.2021

Mathematics

So, if we take 800 as the 100%, the increase is 900-800 or 100, what is 100 in percentage of 800?

well $\bf \begin{array}{ccllll}
amount&\%\\
\textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash\\
800&100\\
100&x
\end{array}\implies \cfrac{800}{100}=\cfrac{100}{x}$

solve for "x"

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Written as a simplified polynomial in standard form, what is the result when (x-4)^2 is subtracted from 10x?

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