jo1720 jo1720
  • 13-02-2019
  • Mathematics
contestada

cube root
[tex] - 4 \sqrt[3x]{x + 25 = 35} [/tex]

Respuesta :

gmany
gmany gmany
  • 18-02-2019

Answer:

[tex]\large\boxed{x=-\dfrac{44,475}{64}}[/tex]

Step-by-step explanation:

[tex]-4\sqrt[3]{x+25}=35\\\\\left(-4\sqrt[3]{x+25}\right)^3=35^3\\\\-4^3(x+25)=42,875\\\\-64(x+25)=42,875\qquad\text{use distributive property}\\\\-64x-1,600=42,875\qquad\text{add 1,600 to both sides}\\\\-64x=44,475\qquad\text{divide both sides by (-64)}\\\\x=-\dfrac{44,475}{64}[/tex]

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