Essay Submission: square root 2y+7 + 4 equals y radical expression alone to 1 side square root 2y+7 equals y - 4 now you want to get rid of the radical so square 2 sides 2y+7 equals (y-4)^exponent2 simplify the right side 2y+7+y^exponent 2- 8y +16 combine terms that are alike and also EQUATE TO ZERO y^exponent2 - 10y +9 equals 0 now you must factor (y-9) multiply (y-1) equals 0 check 9=9 extraneous solve now y equals 9 and y equals 1

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