Answer And Solution Of (3y+5)\Xb2-400=0

Answer and solution of (3y+5)²-400=0

Answer:

 5

Step-by-step explanation:

  (3y + 5)²  -400   =0

   (3y+5)²   =  400

    3y + 5     =20      / take the square root of both sides

     3y  = 15

       y  = 5


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