Bonsoir;
(2*3) + (2*3) +(3*3)
= 6+6+9
= 21
(4*3) + [(2*3)*3] /2
= 12 + 9
leurs aires sont égales
2x+ 2x+x² => x² +4x
(4x) + (2x*x) /2
4x+ 2x²/2
= 4x +x²
= x² +4x
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Bonsoir;
(2*3) + (2*3) +(3*3)
= 6+6+9
= 21
(4*3) + [(2*3)*3] /2
= 12 + 9
= 21
leurs aires sont égales
2x+ 2x+x² => x² +4x
(4x) + (2x*x) /2
4x+ 2x²/2
= 4x +x²
= x² +4x