Radical Equations and Extraneous Roots — Unit test Answers

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Which equation can be rewritten as x + 4 = x2? Assume

StartRoot x EndRoot + 2 = x

StartRoot x + 2 EndRoot = x

StartRoot x + 4 EndRoot = x

StartRoot x squared + 16 EndRoot = x

Which equation is equivalent to ?

x + 11 = 225

x + 121 = 225

StartRoot x EndRoot = 15 + 11

StartRoot x EndRoot = 15 minus 11

Which of the following is a radical equation?

x + StartRoot 5 EndRoot = 12

x squared = 16

3 + x StartRoot 7 EndRoot = 13

7 StartRoot x EndRoot = 14

Which of the following is a radical equation?

x StartRoot 3 EndRoot = 13

x + StartRoot 3 EndRoot = 13

StartRoot x EndRoot + 3 = 13

x + 3 = StartRoot 13 EndRoot

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