3 equations need help with please

Steps to Solve a Radical Equation Vx + 2 = 7 vx+2=7 PREVIEW There are only a couple steps to solve a radical -2 - 2 - Step 1= vx+ 2 equation. Vx = 5 x+ 2 = 49 One real world application of radical equations 1 - Isolate the radical (get the radical by itself) Stop -2 - 2 comes from the world of medicine. Before x = 25 x = 47 determining the dosage of a drug to give to a 2 - Raise both sides to the appropriate patient, doctors will sometimes calculate the axponent to "get rid" of the radical (ex. Square patient's Body Surface Area (or BSA). One way a square root) to determine a person's BSA is to use the 3 - Solve for x following formula: 4 - Check your answer by substituting it in The steps to solve two similar radical equations BSA = Wh place of x 3600 YOU MUST DO THIS LAST STEP is shown to the left. EACH TIME How tall is a person (/) in centimeters if their In the first problem, they first subtracted 2 from BSA is v 8 m and they weigh 160 lbs.(w)? Vx+6 - 2-8 Stops both sides before they squared both sides. Isolate the In the second a problem, they first squared both sides and then subtracted 2 from both sides. Submit Solve for x Explain why you think the steps they took were different if both students answered their CHECK Ar your answer in place of r and simplify YOUR problem correctly. SOLUTION