Bonjour voici quelques petites equatins lerci aveux qui m'aideront
a) x² = 0,49
b) x² = 17
c) x² = 4/9
d) x² - 100 = 0
e) 4x² = 36
voila voila
a) x² = 0,49
b) x² = 17
c) x² = 4/9
d) x² - 100 = 0
e) 4x² = 36
voila voila
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Verified answer
a) x² = 0,49x = √0,49
b) x² = 17
x = √17
c) x² = 4/9
x = √4/9
x = 2/3
d) x² - 100 = 0
x² = 100
x = √100
x = 10
e) 4x² = 36
x² = 36/4
x = √36/4
x = 6/2
x = 3