7.5 solving square root and other radical equations
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SolveTRANSCRIPT
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7.5
Solving square root and other radical equations
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Solving square root equations
• Get the square root by itself before you do anything else.
• Square both sides and then solve
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Solve
7952 x
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Solve
369423 x
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Solve
133144 x
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Practice Problems
2/6: #7 pg 394 1-6, do 65-74 as review
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7.5 Day 2
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Solving radical equations
• Get the radical by itself• Raise each side to the reciprocal power• Remember rules for absolute values
evenismwhenxx mn
nm
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Solve
252 32x
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Solve
54)3(2 23
x
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Practice Problems
2/7: #8 pg 394 7-12
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7.5 Day 3
• Extraneous solutions• Solving when we have multiple roots
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Solve
xx 47
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Solve
51 xx
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Solving equations with 2 roots/rational exponents
• Get one on each side of the equation• Determine which power to take each side
too• Simplify and check your solutions
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Solve021694 xx
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Solve0)43()12( 25.5. xx
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Practice Problems
2/6: #9 pg 394 15-29 odd, 34-42 even