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Sagot :

INEQUATION

Bonjour,

a) Compléter:

k(x)= x²+2

k(3)= (3)²+2= 9+2= 11

k(-5)= (-5)²+2= 25+2= 27

b. k(10)= (10)²+2= 100+2= 102

c. k(-4)= (-4)²+2= 16+2= 18

d.   x²+2= 38

x²= 38-2

x²= 36

x= √36  ou x=√36

x= -6            x= 6

S= { -6, 6 }

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