log_x+1 (2x^2-5x-7)=2...

ira08001 @ira08001

August 2022 1 6 Report

log_x+1 (2x^2-5x-7)=2

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AliceMagic
${(x + 1)}^{2} = 2 {x}^{2} - 5x - 7 \\ {x}^{2} + 2x + 1 = 2 {x}^{2} - 5x - 7 \\ - {x}^{2} + 7x + 8 = 0 \\ x = - 1 \\ x = 8$

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