Bonsoir,
A= 10d -2d² +15 -3d
= -2d² +7d +15
B= 37 +7d -14d -22
= -7d -15
J= - 5t +7y -1
k= 8a -2a +5
= -a +5
L = 3b +1 +2b -5
= 5b -4
