Bonsoir,
A= 2( 2-3) = 2* -1 = -2
B= 3*2 -2*-3 = 6 +6 = 12
C= 2* 2² + 5*-3 -3 = 8 -15 -3 = -10
D= 2(2+3) = 2* 5 = 10
E = 4*2*-3= -24
F = 5*2² - 8*2*-3 = 20 +48 = 68