Question

ajuda ai pfv ponha a conta

Answer 1

Resposta:

$4.{(3x - 2y)}^{2} = 9 {x}^{2} - 12xy + 4 {y}^{2} \\ \\ 5.(4a - {b}^{3} )((4a + {b}^{3} ) = 16 {a}^{2} - {b}^{6}$

$a - 25 {a}^{2} - 10ab + {b}^{2} \\ = a - {(5a - b)}^{2} \\ \\ b - {x}^{2} - 9 {y}^{2} \\ = b - (x + 3y)(x - 3y)$

$c - {a}^{2} {b}^{2} + 2abc + {c}^{2} \\ = c - {(ab + c)}^{2}$

Answer 2

Resposta ↓

4) = 9x² - 12y + 4x²

5) = 16a² - b⁶

6) a) = (5a - b)²

6) b) = (x - 3y) . (x + 3y)

6) c) = (ab + c)²

Explicação passo-a-passo:

4) (3x - 2y)²

4) (3x - 2y) . (3x - 2y)

4) 9x² - 6xy - 6xy + 4y²

4) = 9x² - 12xy + 4y²

5) (4a - b³) . (4a + b³)

5) 16a² + 4ab³ - 4ab³ - b⁶

5) = 16a² - b⁶

6) a) 25a² - 10ab + b²

6) a) (5a - b) . (5a - b)

6) a) = (5a - b)²

6) b) x² - 9y²

6) b) = (x - 3y) . (x + 3y)

6) c) a²b² + 2abc + c²

6) c) (ab + c) . (ab + c)

6) c) = (ab + c)²