Bonjour,
1) 9*2 + 3
= 18 + 3= 21
2)
4*6² + 2*6 - 4
= 4*36 + 12 - 4
= 144 + 8
= 152
3)4*4² + 4(4 - 1) + 2*1²
= 4*16 + 4*4 - 4*1 + 2*1
= 64 + 16 - 4 + 2
= 76 + 2
= 78
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Bonjour,
1) 9*2 + 3
= 18 + 3
= 21
2)
4*6² + 2*6 - 4
= 4*36 + 12 - 4
= 144 + 8
= 152
3)
4*4² + 4(4 - 1) + 2*1²
= 4*16 + 4*4 - 4*1 + 2*1
= 64 + 16 - 4 + 2
= 76 + 2
= 78