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# math question ?

some parts are empty

### 1 Answer

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- roderick_youngLv 75 months ago
Just replace the "x" with the first argument (value) in the function, and replace "y" with the second value.

Example

f(a^2, 3a)

x = a^2

y = 3a

x^2 - y^2 = (a^2)^2 - (3a)^2 = a^4 - 9a^2

2xy = 2*(a^2)(3a) = 6a^3

x^2 = (a^2)^2 = a^4

so the answer would be

(a^4 - 9a^2, 6a^3, a^4)

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