Question

me podrian ayudarr!!!!!​

Answer 1

Ejemplo de fórmula de un binomio al cubo: (a + b)³ = a³ + 3a²b + 3ab² + b³

Solución:

(3y² - 4)³

= (3y^2)^3 + 3(3y^2)^2 (-4) + 3(3y^2)(-4)^2 + (-4)^3

= 27y^6 + 3(9y^4)(-4) + 3(3y^2)(+16) + 64

= 27y^6 + -108y^4 + 144y^2 + 64

RPTA: ↑

Answer 2

Explicación paso a paso:

${(3 {x}^{2} - 4)}^{3} \\ {(3 {x}^{2} )}^{3} + {4}^{3} - (3)(3 {x}^{2} ) (4)(3 {x}^{2} + 4) \\ 27 {x}^{6} + 64 - (36 {x}^{2} )(3 {x}^{2} + 4) \\ 27 {x}^{6} + 64 - 108 {x}^{4} - 144 {x}^{2}$