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FInf $r$ if $\sqrt{4r+3}-2=3$
in QMI1500 by Platinum (113k points) | 8 views

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(4r +3)^1/2 -2= 3 (4r +3)^1/2 = 3+2 (4r +3)^1/2*2 = 5^2 4r + 3 = 25 4r= 25-3 4r= 22 4r/4 = 22/4 r = 5.5
by Bronze Status (6.1k points)

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