Question

me podrian ayudar con unas ecuaciones?
A) X + 3 = ³√-27
B) 3 √X+1 = ( 15:3 )​

Answer 1

Respuesta:

a) x + 3 = $\sqrt[3]{27}$ = 0

b) 3 $\sqrt{x + 1}$= (15 ÷ 3)​ = $\frac{16}{9}$

Explicación paso a paso:

a) x + 3 = $\sqrt[3]{27}$ → x + 3 = $\sqrt[3]{(3^{3}) }$ → x + 3 = 3 → x = 3 - 3 → x = 0

b)  3 $\sqrt{x + 1}$ = (15 ÷ 3)​ →  3 $\sqrt{x + 1}$ = 5 →  $(3\sqrt{x + 1}) ^{2}$ = $(5)^{2}$ → 9 (x + 1) = 25 →
9x + 9 = 25 → 9x = 25 - 9 → 9x = 16 → x = $\frac{16}{9}$