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04-04-2018
Mathematics

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Do you agree with the equation? Explain why or why not.

Do you agree with the equation Explain why or why not class=

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calculista calculista

13-04-2018

we have that

[√(2x+1)]+3=0
for x=4
[√(2*4+1)]+3=0
[√(9)]+3=0
3+3=0----------6 is not zero
therefore
the solution is not correct for x=4

[√(2x+1)]+3=0--------> [√(2x+1)]=-3---------> There is no real solution for that equation
Because (2x+1) >= 0
the solution is with complex numbers

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