Автор - sifan

упростите выражение (x-8y)^2+(4x+2y)^2

Ответ

Автор - rina2403k

(x - 8y) {}^{2}  + (4x + 2y) {}^{2}  \ x {}^{2}  + 16xy + 4y { }^{2}  + 16x {}^{2} + 16xy + 4y {}^{2}  \ 17x {}^{2}  + 32xy + 8y {}^{2}

Ответ

Автор - trscott

(x-8y)²+(4x+2y)² = x²-16xy + 64y²+16x²+16xy+4y² = 17x²+68y²= 17(x²+4y²)

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