Question

quais sao as raizes da equaçao x elevado a 2 -10x+9=0?

Answer 1

Bom dia Matheus

x² - 10x + 9 = 0 

delta
d²  = 100 - 36 = 64
d = 8

x1 = (10 + 8)/2 = 9
x2 = (10 - 8)/2 = 1

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