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makeithappen60
09.09.2020 •
Mathematics
What is x4-81 factored?
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Ответ:
"The difference of two squares is the same as (their sum) times (their difference)."
x^4 is the square of x² .
81 is the square of 9 .
Their difference is the same as (x² + 9) times (x² - 9).
But (x² - 9) is also the difference of two squares,
so it's the same thing as (x+ 3) times (x-3).
So the complete factored form of the original expression is
(x^4 - 81) = (x² + 9) (x+3) (x - 3)
Ответ:
Ответ:
The full explanation is here. https://www.mathpapa.com/algebra-calculator.html?q=(3x%2B2)%2F4%3E%E2%88%9220
Step-by-step explanation: