Réponse :
Bonjour
Calcule chacune des expressions suivantes pour x = 1 et y = 4
C = x²+x+y
C = 1² + 1 + 4
C = 1 + 5
C = 6
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F = x²y
F = 1²×4
F = 1×4
F = 4
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D = x² + 2xy + y²
D = 1² + 2 × 1 × 4 + 4²
D = 1 + 8 + 16
D = 25
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E = x² + y²
E = 1² + 4²
E = 1 + 16
E = 17
Bonjour;
C = x²+x+y
1² +1 +4
= 1+1+4
= 6
F = x²y
1²*4
= 1*4
= 4
D = x² + 2xy + y²
1² +2*1*4 +4²
= 1+8+16
= 25
E = x² + y²
1²+4²
= 1+16
= 17
