Question

Exercitiile urmàtoare 3/4

Answer 1

Răspuns:

3.

$1 - x = 4 \\ \\ - x = 4 - 1 \\ \\ - x = 3 \\ \\ x = - 3$

4.

$(x + x)^{3} \div 4x = \\ \\ = (2x)^{3} \div 4x = \\ \\ = 8 {x}^{3} \div 4x = \\ \\ = 2 {x}^{2}$

Succes! ♡︎♥︎♡︎

Answer 2

Răspuns:

3.

1 - x = 4

-x = 4 - 1

-x = 3

x = - 3 ; x ∈ ℝ

4.

(x+x)³ : (4x)

= (2x)³ : 4x =

= (2x)³/4x =

= 8x³/4x =

= 2x³/x =

= 2x²