Question

me ajudem

a) (X+5)²

b) (a+3)³

c) (4+m)²

d) (X + a)²​

Answer 1

Resposta:

a)

$\sf{(X+5)²}$

$\sf{x {}^{2} + 2x.5 + 5 {}^{2} }$

$\sf{ {x}^{2} + 10x + {5}^{2} }$

$\rightarrow\boxed{\boxed{\sf{ {x}^{2} + 10x + 25}}}\checkmark$

b)

$\sf{(a+3)³}$

$\sf{ {a}^{3} + 3 {a}^{2}x3 + 3ax {3}^{2} + 3}$

$\sf{ {a {}^{3} }^{} + 9 {a}^{2} + 3ax {3}^{2} + {3}^{3} }$

$\sf{ {a}^{3} + 9 {a}^{2} + 3ax9 + {3}^{3} }$

$\sf{ {a}^{3} + 9 {a}^{2} + 3 {a}^{} x9 + 27}$

$\rightarrow\boxed{\boxed{\sf{ {a}^{3} + 9 {a}^{2} + 27a + 27 }}}\checkmark$

c)

$\sf{(4+m)²}$

$\sf{16 + 8m + {m}^{2} }$

$\rightarrow\boxed{\boxed{\sf{ {m}^{2} + 8m + 16 }}}\checkmark$

d)

$\sf{(X + a)²}$

$\sf{ {x}^{2} + 2xa + {a}^{2} }$

$\rightarrow\boxed{\boxed{\sf{ {x}^{2} + 2ax + {a}^{2} }}}\checkmark$

Explicação passo-a-passo:

(espero ter colaborado)