Salut,
Il faut simplement remplace x par ce le nbr que tu as entre parenthèse
g(-2) = 2(-2)²-3*-2 = 2*4+6 = 8+6 = 14
g( 0) = 2*0²-3*0 = 0 - 0 = 0
g(1/2) = 2*(1/2)² - 3*1/2 = 2*1/4 - 3/2 = 1/2 -3/2 = -2/2 = -1
g(10³) = 2*(10³)²-3*10³ = 2*10⁶ -3*10³ = 10³(2*10³-3)
= 10³(2000-3 )
= 10³ ( 1997)
= 1997*10³
= 1997000
