Explicación paso a paso:
Escribe el producto de los siguientes binomios por simple observación:
(x+3)² = (x)² + 2(x)(3) + (3)²
(x+3)² = x²+6x+9
(y+4)² = (y)² + 2(y)(4) + (4)²
(y+4)² = y²+8y+16
(2m+5)² = (2m)² + 2(2m)(5) + (5)²
(2m+5)² = 4m²+20m+25
(m-n)³ = (m)³ - 3(m)²(n) + 3(m)(n)² - (n)³
(m-n)³ = m³-3m²n+3mn²-n³
(5x+8)(5x-8) = (5x)² - (8)²
(5x+8)(5x-8) = 25x²-64
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Explicación paso a paso:
Escribe el producto de los siguientes binomios por simple observación:
(x+3)² = (x)² + 2(x)(3) + (3)²
(x+3)² = x²+6x+9
(y+4)² = (y)² + 2(y)(4) + (4)²
(y+4)² = y²+8y+16
(2m+5)² = (2m)² + 2(2m)(5) + (5)²
(2m+5)² = 4m²+20m+25
(m-n)³ = (m)³ - 3(m)²(n) + 3(m)(n)² - (n)³
(m-n)³ = m³-3m²n+3mn²-n³
(5x+8)(5x-8) = (5x)² - (8)²
(5x+8)(5x-8) = 25x²-64