17. (1,3x + 1,4y⁴)(1,3x − 1,4y⁴)

Question

\((1.3x+1.4y^4)(1.3x-1.4y^4)=(1.3x)^2-(1.4y^4)^2\).

\(=1.69x^2-1.96y^8\).

Ответ: \(1.69x^2-1.96y^8\).

Accepted Answer

\((1.3x+1.4y^4)(1.3x-1.4y^4)=(1.3x)^2-(1.4y^4)^2\).

\(=1.69x^2-1.96y^8\).

Ответ: \(1.69x^2-1.96y^8\).