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ХорошийАнанас
@ХорошийАнанас
August 2022
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Найди значения выражений x(во 2 степени)−2xy+y(во 2 степени) и (x−y)(во 2 степени) и сравни их, если:
x=-9,4 и y=-2,6
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MerisenSan
X²-2xy+y² and (x-y)² also x = -9,4; y = -2,6
x²-2xy+y² – используем формулу(a²-2ab+b²=(a-b)²) и получаем (x-y)²
(x-y)² = (x-y)²
(-9,4 - (-2,6))² = (-9,4 - (-2,6))²
(-9,4 - (-2,6))² = (-9.4 + 2.6)² = (-6.8)² = (-
)² =
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Answers & Comments
x²-2xy+y² – используем формулу(a²-2ab+b²=(a-b)²) и получаем (x-y)²
(x-y)² = (x-y)²
(-9,4 - (-2,6))² = (-9,4 - (-2,6))²
(-9,4 - (-2,6))² = (-9.4 + 2.6)² = (-6.8)² = (-