# SOLUTION: solve ^3&#8730;5x+4+9=4 I just do not understand how to do these kinds of problems. The 3 is a small square root on the outside

Algebra ->  Algebra  -> Radicals -> SOLUTION: solve ^3&#8730;5x+4+9=4 I just do not understand how to do these kinds of problems. The 3 is a small square root on the outside      Log On

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 Click here to see ALL problems on Radicals Question 507276: solve ^3√5x+4+9=4 I just do not understand how to do these kinds of problems. The 3 is a small square root on the outsideAnswer by stanbon(57250)   (Show Source): You can put this solution on YOUR website!solve ^3√5x+4+9=4 --- That is not a "small square root"; it is a cube root. --- Equation: cbrt(5x+4) + 9 = 4 --- cbrt(5x+4) = -5 --- Raise both sides to the 3rd power to get: 5x+4 = -125 --- 5x = -129 --- x = -129/5 = -25 4/5 =========================== Cheers, Stan H.