Ola Marcia
x² + 21 = 10x
x² - 10x + 21 = 21
7 + 3 = 10
7*3 = 21
x1 = 7
x2 = 3
pronto
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Ola Marcia
x² + 21 = 10x
x² - 10x + 21 = 21
7 + 3 = 10
7*3 = 21
x1 = 7
x2 = 3
pronto