Bonjour,
tu remplaces x par sa valeur et tu fais les opérations :
4(x-5)² -6
x= -4
4*(-4-5)² -6
= 4* (-9)² -6
= 4*81 -6
= 318
x = -3
4(-3-5)² -6
= 4* (-8) ² -6
= 4*64 -6
=250
x= -2
4(-2-5)² -6
= 4*( -7)² -6
= 4* 49 -6
=190
x= -1
4(-1-5)² -6
= 4*(-6)-6
= 4*36-6
= 138
x= 0
4(0-5)² -6
= 4* (-5)² -6
= 4*25 -6
= 94
x=1
4(1-5)² -6
= 4(-4)² -6
= 4* 16 -6
= 58
x= 2
4(2-5)² -6
= 4*(-3)² -6
= 4*9 -6
= 30
etc...
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Bonjour,
tu remplaces x par sa valeur et tu fais les opérations :
4(x-5)² -6
x= -4
4*(-4-5)² -6
= 4* (-9)² -6
= 4*81 -6
= 318
x = -3
4(-3-5)² -6
= 4* (-8) ² -6
= 4*64 -6
=250
x= -2
4(-2-5)² -6
= 4*( -7)² -6
= 4* 49 -6
=190
x= -1
4(-1-5)² -6
= 4*(-6)-6
= 4*36-6
= 138
x= 0
4(0-5)² -6
= 4* (-5)² -6
= 4*25 -6
= 94
x=1
4(1-5)² -6
= 4(-4)² -6
= 4* 16 -6
= 58
x= 2
4(2-5)² -6
= 4*(-3)² -6
= 4*9 -6
= 30
etc...