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LaSalle7
@LaSalle7
May 2019
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Exercice 1 et Exercice 2 :
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CrazyMint
Bonsoir,
Ex 1 :
A=(5+2^5)*3 = (5+32)*3 = 37*3 =
111
B=(2+3)²-2*10 = 5²-20 = 25-20 =
5
C=(-5)²-3^3+2 = 25-27+2 = -2+2 =
0
Ex 2 :
D=3(y-7)+2y-4 = 3y-21+2y-4 =
5y-25
E=z(3-z)-5(4z-9) = 3z-z²-20z+45 =
z²+3z+45
F=t(t-2)-(t-3t²) = t²-2t-t+3t² =
4t²-t
G=5(c-1)+5(3-5c) = 5c-5+15-25c =
-20c+10
H=2(-6+h)+(h-12) = -12+2h+h+12 =
3h
I=2(a+b)-7(a+b) = 2a+2b-7a-7b =
-5a-5b
1 votes
Thanks 0
CrazyMint
* = x (multiplié) et ^ c'est puissance donc 3^3 = 3puissance 3
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Ex 1 :
A=(5+2^5)*3 = (5+32)*3 = 37*3 = 111
B=(2+3)²-2*10 = 5²-20 = 25-20 = 5
C=(-5)²-3^3+2 = 25-27+2 = -2+2 = 0
Ex 2 :
D=3(y-7)+2y-4 = 3y-21+2y-4 = 5y-25
E=z(3-z)-5(4z-9) = 3z-z²-20z+45 = z²+3z+45
F=t(t-2)-(t-3t²) = t²-2t-t+3t² = 4t²-t
G=5(c-1)+5(3-5c) = 5c-5+15-25c = -20c+10
H=2(-6+h)+(h-12) = -12+2h+h+12 = 3h
I=2(a+b)-7(a+b) = 2a+2b-7a-7b = -5a-5b