Réponse :
Explications étape par étape
Bjr,
G= 10t² -35t +16t -56 = 10t² -19t-56
H= 6x² -4x -15x +10 = -x² -19x +10
J = 10y -15y² +2 -3y = -15y² +7y +2
K: +6x +15 -2z² -5z= -2z² +6x -5z +15
L=
(4t+3)(4t+3)
16t² +12t +12t +9= 16t² +24t +9
M=
(8u-1)(8u-1)
64u² -8u -8u +1=
64u² -16u +1
N=
6 + 15x -20x² -6 +8x =
-20x² +23x
P =
5y -[-8y² -20y -6y -15]=
5y +8y² +20y +6y +15 =
8y² +31y +15
R = (12z-6)( 3-z)=
36z -12z² -18 +6z=
-12z² +42z -18
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