Respostas
x² - 25 = x² - 10x +25 = 5x - 25 =
x² = 25 Δ = (-10)² - 4 .1 . 25 5x = 25
x = √25 Δ = 100 - 100 x = 25/5
x = 5 Δ = 0 x = 5
x = - (-10) ± √0
2
x', x'' = 10/ 2 = 5
MMC 5 , 5 , 5 / 5 MDC 5 , 5 , 5 / 5
1 , 1 , 1 1 , 1 , 1
MMC = 5 MDC = 5
x² - 25 = x² - 10x +25 = 5x - 25 =
x² = 25 Δ = (-10)² - 4 .1 . 25 5x = 25
x = √25 Δ = 100 - 100 x = 25/5
x = 5 Δ = 0 x = 5
x = - (-10) ± √0
2
x', x'' = 10/ 2 = 5
MMC 5 , 5 , 5 / 5 MDC 5 , 5 , 5 / 5
1 , 1 , 1 1 , 1 , 1
MMC = 5 MDC = 5