patricia-jones_609899b40aafc
patricia-jones_609899b40aafc
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9x² = 8x 9x² - 8x = 0 x( 9x - 8) = 0 x' = 0 9x - 8 = 0 9x = 8 x = 8/9 De fosse 2/3 seria impossivel PROVA 9(2/3)² = 8(2/3) 9(4/9) = 16/3 36/9 = 16/3 4 = 16/3 ( impossivel) PROVA COM 8/9 9(8/9)² = 8(8/9) 9(64/81) = 64/9 64/9 =…