Bonsoir pourez vous m’aider pour mon exo

Bonsoir,

a) f(-4) = -8 * (-4)² + 5 * (-4) - 7

= -8 * 16 - 20 - 7

= -155

b) g(4) = 2*4 + 6

= 8 + 6

= 14

c) f(3) = -8 * 3² + 5 * 3 - 7

= -8 * 9 + 15 - 7

= -72 + 15 - 7

= -64

d) g(-5) = 2 * (-5) + 6

= -10 + 6

= -4