bonjour
k (x) = x² + 2
k (3) = 9 + 2 = 11
k ( - 5 ) = 25 + 2 = 27
k (10) = 100 + 2 = 102
k ( - 4 ) = 16 + 2 = 18
x² + 2 = 38
x² = 36
x = √36 et - √36
x = 6 et - 6
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bonjour
k (x) = x² + 2
k (3) = 9 + 2 = 11
k ( - 5 ) = 25 + 2 = 27
k (10) = 100 + 2 = 102
k ( - 4 ) = 16 + 2 = 18
x² + 2 = 38
x² = 36
x = √36 et - √36
x = 6 et - 6